Week 19

Starting off 19 weeks..."She has started to swallow amniotic fluid, and her kidneys continue to make urine. Hair on the scalp is sprouting. Sensory development reaches its peak this week. The nerve cells serving each of the senses -- taste, smell, hearing, seeing, and touch -- are now developing in their specialised areas of the brain. Nerve cell production slows down as existing nerve cells grow larger and make more complex connections. If you're carrying a baby girl, she already has roughly six million eggs in her ovaries. By the time she's born, she'll have about one million."