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This is the last week of the first trimester and a great point of relief from all the symptoms that made the previous 12 weeks almost unbearable. All the discomforts are easing if not completely ebbed out so that you no longer suffer from nausea and morning sickness. If they have not ceased completely, the frequency is minimal and is time to enjoy. By now, the risk of miscarriage is very low because over 80% of them happen in the first 12 weeks.
By the 13th week, the baby is developing very fast and is about 1 ounce. While the baby is still very tiny, he/she now looks like a human being. However, the head is still remarkably bigger and everything out of proportion. But other parts of the body are growing fast to catch up.
Muscle control: The baby is slowly gaining some muscle control and can be seen flopping, flipping, and regularly kicking compared to the previous weeks. However, these movements are involuntary, and the baby has very limited control over them. The joints and toes are maturing to make movement easier and fun for the baby. However, it will not be until later in the second trimester that you can feel these acrobatics.
Increasing Amniotic Fluid: As the baby continues to grow, it requires an additional space inside the amniotic sac. The amniotic sac grows rapidly to keep pace with the baby while the amniotic fluid hits 25 ml. The amniotic fluid will keep increasing until the 33rd week when it will start decreasing at a slow rate until the end of pregnancy.
Bones and skin: The baby’ joints and bones are hardening through ossification. However, the skin is still transparent, and most of the internal organs are visible. Even the additional layer being formed around the skin is still transparent and will take several weeks to have a complete skin all over the baby’s body.
Brain development: By the close of the 13th week, the brain is maturing. The left and right cerebral brain hemispheres are starting to connect after operating independently for some time. The right and left hemispheres are responsible for the body’s left side and right side respectively. With time, the baby will have greater control of movements, hormones release, and other developments.
Apart from feeling better and enjoying a lot of relief from many discomforts of the first trimester, your pregnancy continues to become more elaborate. Though the bump is significant, it is still small, and you do not need to put on maternity clothes at this moment. Even if your favorite jeans might not fit anymore, it is advisable to put on loose clothes to reduce discomfort. Many are the time when pregnant women go for sweatpants and baggy clothing.