Baby Bolin: 30 weeks

Baby Jeffrey is a bit more than 15 1/2 inches long now, and he weighs almost 3 pounds.

A pint and a half of amniotic fluid surrounds him, but that volume will decrease as he gets bigger and fills out the uterus.

His eyes open and close, he's able to distinguish between light and dark, and he can even follow a light source back and forth. Once he's born, he'll keep his eyes closed for a good part of the day. When he does open them, he'll respond to changes in light but will have a visual acuity of only 20/400 — which means he can only make out objects a few inches from his face. ("Normal" vision in adults is 20/20.)

How mom's life is changing:
You may be feeling a little tired these days, especially if you're having any trouble sleeping. You might also feel clumsy, which is perfectly understandable.

Not only are you heavier, your balance is off and your joints are loosened, thanks to pregnancy hormones. Those loose joints can actually cause your feet to grow a shoe size --permanently.

Remember those mood swings you had earlier in pregnancy? The combination of uncomfortable symptoms and your hormones may result in a revisit of those ups and downs you felt in the first few months.