Your baby weighs about 8 1/2 ounces, and he measures 6 inches, head to bottom — about the length of a small zucchini. His arms and legs are in the right proportions to each other and the rest of his body now. His kidneys continue to make urine, and the hair on his scalp is sprouting. This is a crucial time for sensory development: Your baby's brain is designating specialized areas for smell, taste, hearing, vision, and touch. If your baby is a girl, she has an astonishing six million eggs in her ovaries. They'll dwindle to fewer than two million by the time she's born.
Geez, they're telling me about her ovaries before she's even born so I have to start worrying now about her getting knocked up!