Baby now weighs more than the placenta. He or she has specific sleep schedule and he or she knows how to yawn. Fat begins to form beneath the skin. That helps to keep body temperature later on. Sebaceous glands have formed and and he or she is covered with vernix. Small hair helps to keep the vernix on the skin. The hair or lanugo is normally shed before birth, around 7 or 8 months. Fetal umbilical cord becomes thicker and stronger.
You are sweating more. You love to be in the open air. The placenta is now producing enough hormone, estrogen, which is why you feel better again. Your uterus extends over the pubic bone, therefore, pregnancy should be clearly marked.