The most dramatic development this week: reflexes. Your baby's fingers will soon begin to open and close, his toes will curl, his eye muscles will clench, and his mouth will make sucking movements. In fact, if you prod your abdomen, your baby will squirm in response, although you won't be able to feel it. His intestines, which have grown so fast that they protrude into the umbilical cord, will start to move into his abdominal cavity about now, and his kidneys will begin excreting urine into his bladder.

Meanwhile, nerve cells are multiplying rapidly, and in your baby's brain, synapses are forming furiously. His face looks unquestionably human: His eyes have moved from the sides to the front of his head, and his ears are right where they should be. From crown to rump, your baby-to-be is just over 2 inches long (about the size of a lime or plum) and weighs half an ounce.

You’re reaching the home stretch of the first trimester (we know, finally!) at 12 weeks which means your hormones are likely to tone things down a bit -- which might make you feel a little less emotional! And it will probably help the symptoms subside a bit, too. One warning though: your morning sickness and fatigue might get replaced by headaches and dizziness. Your uterus has grown to the point where your healthcare provider can now feel the top of it (the fundus) low in your abdomen, just above your pubic bone.




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