The fourth month marks the beginning of the second trimester. This is by far the most comfortable month as morning sickness and heart burn abate and women experience an increase in appetite and energy levels. Breast tenderness diminishes and you may also want to include daily exercise in your regimen.
Overall, the fourth month is a stage of rapid foetal development and minimal discomfort. By the end of the fourth month you will most certainly be looking pregnant. Let’s see the weekly stages of pregnancy in the fourth month.
Pregnancy Stages In The Fourth Month
The second trimester starts from the 14th week .Foetuses in this week grow at different paces and their sizes may vary from woman to woman. Despite the differences in their sizes, they show the same developmental milestones in-utero. The baby in this week is the size of a clenched fist. The neck of the baby gets longer and the head is more erect than before. Ultrasounds have also shown foetal hair on babies as young as 14 weeks. Some foetuses also grow hair around the eye brows thus making their facial features more prominent.
Body hair called as lanugo is also observed. Lanugo is quite ample in the initial gestational stages. This hair is primarily there to protect the baby and keep him/her warm. Most of the hair is shed when the baby starts to accumulate fat on his/her body. A lot of babies have this fuzzy coating even when they are born but luckily this is temporary as most of the hair is shed later.
The baby in this week is around 4 ½ inches long and weights around 2-3 ounces. The size of the baby begins to resemble that of an orange. The baby actually begins to look like one as its ears become more pointed and prominent on the sides of his/her face. The eyes can now be seen on the front of the face. The baby becomes more coordinated in his movements and is seen to flex his/her toes and fingers and also suck its thumb.
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All this can be pretty miraculous when observed on an ultrasound. The baby begins to suck, swallow and breathe in preparation for his/her big day outside the womb. Women don’t begin to feel any foetal movements quite yet although the baby is kicking and punching inside.
The baby is now about 4-5 inches and has a whopping weight of 3-5 ounces. The baby’s muscles get much stronger. Muscles in the spine gain strength which means that the baby is able to stretch itself out in the womb. The ears and eyes are now positioned in the right place and the baby quite remarkably begins to move its eye balls around. They are also able to perceive light and react to it though their eye lids are tightly shut. Cute eye brows and eye lashes are now prominent. The baby also becomes more sensitive to touch and may squirm if your belly is poked.
The size of the baby is now that of an open palm. The crown to rump length is about 5 inches and he/she weighs around 5 ounces. The baby also begins to develop fat around his/her body though the skin is still very translucent. The baby’s heart is now beating at 145 beats per second and the baby vociferously practises suckling to get ready for breast feeding.