This month marks the half-way point to birth, and the baby is very active.  Sleep habits develop and his mother can feel him move and stretch, particularly when she is resting. He is big and strong enough to kick hard against the outside uterine wall and dent it. Up to now, although he swam with ease in his watery world, he was too small for her to detect because the inside wall of the uterus has little feeling. Babies born at this age have survived.