How Much Do Babies Gain in Third Trimester

Week 01 to Week 04

Week i

This week, you would have your final menstrual periods earlier you lot conceive. That ways, your expected delivery date is calculated as 40 weeks from the first 24-hour interval of terminal menstrual period and this calendar week is considered as part of your pregnancy period. Your oestrogen hormone levels increase and a special kind of mucous like substance lines your uterus and the fallopian tubes to facilitate transit of sperms into the tubes. This mucous also protects and keeps the sperms alive for virtually 3-5 days. While y'all plan to excogitate, prepare yourself well. Avert alcohol, drugs, tobacco or any other substances that are harmful to your baby. Eat a healthy diet rich in vitamins, particularly folic acid.

Week 2

You lot would have released an ovum (egg) around this time and if viable sperms remain in the fallopian tube, fertilisation of the egg by the sperm may accept place close to end of this week. Y'all would have conceived and a new life starts growing within you!

Week three

During these seven days after formulation, the fertilised egg undergoes a series of cell division first from breakdown into ii cells, then four followed by eight cells and and then goes on dividing every bit it travels from the fallopian tube into your uterus (womb). In one case in the womb, this group of cells appears like a small-scale ball (morula). This ball of cells becomes fluid-filled (blastocyst) and towards the end of this week, blastocyst gets embedded into the lining of your womb. This is called implantation procedure and takes most six days to be completed. Once implanted, the developing embryo can admission your blood supply and receive nutrition. Your infant starts producing a hormone called human chorionic gonadotropin (HCG), which prevents your menstrual periods and turns your pregnancy exam positive.

Calendar week 4

Your baby which is a ball of cells just about the size of an apple seed is now called an embryo. It is made of two prison cell layers called epiblast and hypoblast which class future organs and tissues of the baby. Amnion and the yolk sac are 2 other structures that develop this calendar week. The amnion with its amniotic fluid envelops and protects the growing embryo. Yolk sac makes the claret that nourishes the embryo until placenta forms and takes over the function.

Calendar week 05 to Week 07

Week 5

Your infant that looked like a mass of cells until now, gains a distinct shape this week. The embryo is about one-half a centimetre long and appears as a tadpole. The neural tube develops which volition later become your baby'south spinal cord and brain. Your baby's heart and other vital organs such as kidneys and liver kickoff developing. The placenta likewise forms this fourth dimension and your baby gets nourishment from your blood through the placenta.

Week six

Your baby has grown to virtually the size of a lentil past now. The brain and spinal cord are developing at a faster rate. Your baby has its facial features developing with those nighttime spots that transform into optics and the pits on either side of the head brand up the ear. Baby'south heart starts beating around this week and heart rate can even exist detected on an ultrasound during your prenatal visit. Pocket-sized buds protrude out that eventually course your baby'due south hands and feet. The digestive and respiratory system organs commencement forming this week.

Week 7

Now onwards your baby almost the size of a grape enters a very active developmental stage and at the same fourth dimension starts adapting to the life within your womb. The umbilical cord which acts as a linkage betwixt yous and your baby throughout pregnancy has formed by now. This serves as a portal to provide oxygen and nutrition to your baby and also for waste disposal from babe'south body.

Your baby is growing at a rapid pace and all the body parts that have started forming in the earlier weeks (middle and brain) differentiate and become complex. Your infant'southward digestive tract and lungs as well continue to develop. At the end of the arm bud that had formed last week, a modest hand which looks like a paddle appears. By this week, baby's face acquires a distinct shape as facial features such every bit mouth, nostrils, ears and eyes go more defined.

Calendar week 08 to Week 12

Week 8

Your baby measures almost ane and a half centimetre by this week. Lot of change takes place this week. The cute petty fingers and toes which you long to caress with brainstorm to form. Your babe tin now bend its hand at the elbow and wrist. The eyes go more than evident as they class pigment and too eyelids course to protect the optics. The buds that develop into your babe'due south genital organs also appear this week.

Calendar week 9

Your baby now appears similar a peapod and weighs effectually 2-3grams. By the end of this week, your baby will measure upwards to two.iii centimetres in length. The tail like extension at the end of spinal string disappears and baby'due south caput grows very large compared to the rest of the body. The easily take grown longer and fingers become clearly distinguishable. Baby's genitals start to develop from the buds that had appeared in the previous week. Also, internal reproductive organs such every bit testes and ovaries brainstorm forming this calendar week. Your baby may make few of its showtime movements in this week which tin can exist well appreciated on an ultrasound.

Week 10

Past the end of this calendar week, your infant has crossed the embryonic menstruation and will be regarded as foetus from the side by side week onwards. The foetus measures three centimetres and weighs not more than just 4 grams. Your baby starts developing very fine details such every bit fingernails and pilus as information technology grows each day. The vital organs –the heart, liver, kidneys, brain and lungs take formed completely and started their function. Molar buds appear inside the mouth. If the foetus is male person, and then its testes begin producing testosterone, the male person hormone.

Calendar week 11

Y'all are heading towards the cease of the first trimester. Your baby starts active movements like kicking and stretching. Your baby'southward fingers and toes have separated and the babe grows rapidly from now on until 20 weeks. The face continues to develop and the ears take their final location, on the sides of the head. Your baby's head seems larger and is at least half the infant's length.

Week 12

This week marks the end of your first trimester. Infant'southward vocal cords form this week. Your baby's kidneys start to part as the amniotic fluid your baby swallows is passed out in the course of urine. The eyes which were on the side of the head come closer together. Brain development continues and by the end of this week, your baby may go nigh 5.v centimetre long and weigh around 14 grams.

Calendar week 13 to Week 15

Week 13

You take stepped into the second trimester of your pregnancy. You have your fully developed placenta to provide your baby enough oxygen, nutrients and too dispose waste. Along with this, the placenta starts producing hormones, progesterone and oestrogen that maintain your pregnancy. Your baby's eyelids get fused together in order to protect the developing eyes. Surprisingly, your baby's unique fingerprints take also adult by this time. Your infant measures around 7 to 8 centimetres long and weighs about 23 grams.

Week 14

During this week, very fine colourless hair develops and covers most of the babe's body. It is called lanugo and it usually disappears just before birth. Eyebrows also start growing as do the hair on the scalp. Your baby's genitals have also completed development. Your baby can make expressions –squint, frown or grimace and is able to grasp and suck its thumb. By now your babe'south trunk starts growing faster than the head portion and measures virtually nine centimetre in length and weighs around 43 grams.

Week 15

Your baby is now about 15 centimetres in length head to toe and may weigh around 120 grams by the end of this week. The head portion may account for almost 1/three rd of the baby's body length. If you have been pregnant before, you lot may kickoff feeling sensations of your infant'south movements in this calendar week. Your infant is able to make some facial expressions and has the power of grasping with hands and sucking the thumb. Your infant may first exploring inside your womb with its petty easily! Infant's vocal chords have besides formed by now. The amount of amniotic fluid surrounding your baby as well increases allowing information technology to move around freely in the womb. Hair continues growing on the head and eyebrows. The skeletal system and muscles continue developing due to which baby is able to move his arms and legs.

Calendar week 16 to Week 18

Calendar week 16

Your infant has grown up to the size of a pear fruit and in the following weeks in that location will be rapid growth in your baby. Your baby is able to concur its head in an cock position and can make facial expressions such as squinting and frowning. Besides these activities, your infant may as well grab hold of the umbilical string and start playing with information technology! The circulatory system and urinary system are fully functional and your infant inhales and exhales the amniotic fluid through the lungs.

Week 17

Your baby may measure upto 19 centimetres from the caput to toe and weigh almost 280 grams by the end of this week. Baby's skin appears transparent and wrinkled as the fatty layer underneath has non developed yet. The blood vessels beneath the pare can be seen and makes the skin appear majestic-cerise. A fine layer of pilus called lanugo covers your infant's body and protects the tender baby pare until it is shed a few weeks before birth. Your infant begins exploring its own body with the hands and there is ample amount of amniotic fluid for the infant to swim effectually and shift position very oftentimes.

Week 18

An ultrasound browse is normally washed between 18 and 20 weeks during which yous may see your infant kick, motility arms or even suck the thumb. Your babe's chest moves upwards and down when it inhales and exhales amniotic fluid, in a like way every bit while breathing. The ears take their final position and in following weeks your baby may listen to your voice! The middle ear bones and nerves from the brain take developed and your baby can make out sounds of blood gushing through the umbilical string and your heartbeat. Your baby's basic which have been soft till now start to harden or congeal during this week.

Calendar week 19 to Week 22

Calendar week 19

Past the end of this week, your baby may measure well-nigh 22 centimetre caput to toe and counterbalance around 340 grams. Your infant's fingernails take completely formed and fingerprints tin can be seen engraved in their thin skin. Permanent molar buds appear backside the master tooth buds deep within the gums. A waxy layer chosen vernix caseosa covers and protects your baby'due south subtle skin from harm.

Week 20

You lot have completed nigh one-half of your journey through pregnancy this week! Your baby grows rapidly taking up more than space in the womb. As your baby continues growing, you can feel more than pressure on your lungs, stomach and float. Your infant's skin develops into layers and becomes thicker below the vernix caseosa. Hairs and nails go along growing.

Week 21

Your babe will exist measuring around 25 centimetres from caput to toe and weighing slightly less than half a kilogram by this week. Baby's eyelids remain fused but the retina of the eye has formed completely. Eyelashes and eyebrows have formed. The hair follicles develop pigments that requite your babe'due south pilus its colour. At this stage, your baby lies in a crossed position with feet towards one side of your stomach and caput on the other side. Bone marrow has now adult well enough to take over the product of blood cells from the baby's liver and spleen.

Week 22

Your baby looks more proportional and weighs around 430 grams and most 27 centimetres from head to toe. The first molar buds have appeared in the baby'southward gums. Past the finish of 22 weeks, babe'south nervous system develops completely and the connectedness between brain and spinal cord matures. Your baby is now able to recognise light, sound and feeling of touch on, warmth and hurting. Taste buds have begun forming on the tongue. Baby'south reproductive system also continues developing. The testes outset descending from the belly if it is a baby male child and in girls' uterus, ovaries and vagina would have adult.

Week 23 to Week 25

Week 23

You may notice that your baby tends to be more active this week, particularly during the fourth dimension when yous are resting. The baby adopts a distinct pattern of sleep though they sleep for most of the fourth dimension. By now, your babe may measure up to 28 centimetres and weigh approximately 600 grams. A fat layer starts forming in betwixt the muscles and skin and covers the blood vessels giving a better skin complexion.

Week 24

At 24 weeks, babies will have increased breathing patterns. A substance called surfactant is produced in the baby'southward lungs and lines the lungs to assist the baby exhale after it is born. Your baby may weigh more than 600 grams by now and measure upwardly to 30 centimetres in length. Baby's peel is very thin and delicate and has very picayune corporeality of body fat.

Week 25

Your baby can now hear and recognise your voice and exist calmed by listening to diverse types of music. Eyelids can open; your baby can fifty-fifty blink and react to bright light. Your baby is near 33 centimetres in length and may weigh about 800 grams. Baby's movements become more than regular and y'all may observe baby has resting and active periods.

Week 26 to Calendar week 28

Week 26

Your baby' peel may be wrinkled though the trunk weight is about 907 grams. Baby will steadily proceeds weight in the following 14 weeks. As the fretfulness in the ear have adult completely, response to sound becomes more consistent. Babe's brain also develops intensely as infant grows at a rapid rate. Your baby continues to take pocket-sized breaths of fluid surrounding information technology.

Week 27

In the 27th week of pregnancy, your infant weighs about 1100 grams and measures 37 centimetres. Immune system develops in your baby as your natural antibodies pass into the baby through the placenta. Your infant is now able to coordinate the 'suck and swallow' action which is essential for feeding subsequently birth. The ability to distinguish light from dark also develops by now. Your baby will almost announced the way she is going to look at nascency except that she is thinner and smaller.

Week 28

By the terminate of week 28, your baby may measure about 38 centimetres from caput to toe and weigh slightly over 1000 grams. In this week your baby can open its eyes and turn head towards a continuous bright source of light from outside. The layers of fatty continue to deposit and hair growth also continues. The baby's brain folds and grooves also develop and expand.

Week 29 to Calendar week 33

Week 29

The 3rd trimester begins from the 29th week and lasts till nativity that is effectually 40 weeks. Your baby weighs about 1350 grams and may exist around twoscore centimetre in length. Infant'due south brain increases in size and becomes more complex. The pupils in the babe's eyes tin react to lite and your baby can focus without much difficulty and view dim shapes. Your baby's movements go on to be more active and in example you discover decrease in movements, consult your dr..

Week 30

Your baby will proceed gaining weight rather than growing in length from now onwards. Your baby may weigh around 1400 grams and continue depositing fat layers to gain weight. A special kind of fat chosen brownish adipose tissue gets deposited which helps to regulate newborn infant'south torso temperature and serves as important source of heat production later on nascence. About 1 litre of amniotic fluid may surround your baby now, but its level decreases equally baby grows. Your infant'due south lungs are fully developed and babe may repeatedly move the diaphragm imitating breathing movements. Your baby may also get hiccoughs which are felt as rhythmic jerky motion inside your womb.

Week 31

Your baby now weighs effectually 1700 grams and looks slightly chubby. The head to toe length of the baby would be about 43 centimetres. Your baby's lungs produce more and more amounts of surfactant, a fatty liquid that keeps the lining of the lungs moist and efficient plenty for breathing. The 'suck and consume' action necessary for the baby to feed after birth gets fully coordinated by the terminate of this calendar week. Your baby may consume some amount of amniotic fluid and also pass several cups of 'urine' through float dorsum into the amniotic fluid effectually it. You may feel your babe does not make as many movements equally before, just this is because of lack of space in the womb as baby grows bigger.

Calendar week 32

Your baby will accept hair on the head, eyelashes and eyebrows axiomatic by now. The fine hair that had covered infant's body from the second trimester disappears, but some hairs may persist at birth on the dorsum and shoulders. Your babe keeps practising breathing movements by inhaling amniotic fluid and exercising the lungs! If you lot are carrying a baby boy, his testicles descend from the abdomen into the scrotum.

Week 33

Your baby will turn around and exist in a 'head down' position until birth. Baby's movements may change into stretches and twists as it grows bigger and there is relatively less space to move around in the womb. Your baby will counterbalance about 2100 grams and measure approximately 45 centimetres in length. During the remaining vi weeks, the main job for your infant is to abound bigger by gaining weight and to boost the immune system with your antibodies. Now, your baby's brain has billions of well developed nervus cells which aid your babe coordinate with the in utero surround by senses of hearing, sight and touch. Your infant volition exist able to distinguish dissimilar flavours, whether sweet or sour! Your baby is at sleep near of the times and may even experience dreams!

Week 34 to Week 36

Week 34

At 34 weeks, fat layers continue to eolith and your baby weighs around 2200 grams by now. Your babe's nervous arrangement continues to mature and the lungs are virtually fully adult. Y'all can fifty-fifty talk to your baby every bit the hearing ability is fully developed. The fine hair (lanugo) has fallen off but the waxy covering on your baby's peel, vernix caseosa becomes thicker.

Week 35

Your babe'south expected delivery date is fast budgeted and your babe is now in normal proportion and plump! Your infant could counterbalance effectually 2600 grams and mensurate upto 47 centimetres head to toe by this calendar week. At present onwards the overall growth of your baby becomes slow but weight proceeds increases considerably to up to approximately 230 grams per calendar week. From this week, the almost rapid weight gain period begins and fat deposits throughout baby'due south body particularly around shoulders.

Week 36

Your pregnancy completes full-term by the stop of this week and yous could requite nascence to your infant any time from now! Your baby may weigh about 2700 grams and you lot may experience increasing pressure in the lower function of your abdomen. Your baby's cheeks become chubbier which adds to the fullness of your infant's confront. While your babe's head is in the pelvis, the skull basic may too move in relation to one another (molding). It facilitates like shooting fish in a barrel passage of your baby through birth canal.

Week 37 to Week 40

Week 37

Your baby may counterbalance about 3000 grams and measure virtually 48.5 centimetres caput to toe length. Your baby is regarded as 'total term' or being on time if built-in later on this week. The thick white layer on baby's skin (vernix) remains, but the fine hair covering the body, lanugo would have disappeared by this calendar week. However, fat continues depositing at the charge per unit of fourteen grams a day!

Week 38

You are but two week abroad of holding your petty 1 in your hands! Though baby'south growth has slowed downward, fatty still accumulates. Waste substances begin collecting in the baby'due south intestines. Expressionless skin cells, intestinal cells and lanugo hair pile up to class the greenish-black meconium, baby'southward commencement bowel movement.

Calendar week 39

Nearly all of the vernix coated on the baby'southward skin has disappeared but there may be some remaining in the armpits or groin areas. Your baby'southward breathing exercises usually stop near 24-48 hours prior to commencement of the labour. Virtually 75-100 ml of amniotic fluid remains in the infant'south lungs and hormones released during labour initiates absorption of fluid from the lungs into the claret stream. Umbilical cord may become entangled around infant's cervix sometimes, in this case a Caesarean department would exist required if it causes problems.

Week 40

After much of expectations and preparation, you may welcome your baby this week. Your baby at term may weigh in the range of 2800 grams to 4500 grams and mensurate somewhere around 46 to 56 centimetres. Your newborn may take slight variations such as misshapen head, vernix coating, pare discolourations, dry patches or rashes. All these are quite normal and will resolve in few days.

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Source: http://www.monashobstetrics.com.au/baby-growth/

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