29 Weeks

How our baby's growing:

Our baby now weighs about 2 1/2 pounds (like a butternut squash) and is a tad over 15 inches long from head to heel. His muscles and lungs are continuing to mature, and his head is growing bigger to make room for his developing brain. To meet his increasing nutritional demands, I'll need plenty of protein, vitamins C, folic acid, and iron. And because his bones are soaking up lots of calcium, I'll be sure to drink my milk. This trimester, about 250 milligrams of calcium are deposited in our baby's hardening skeleton each day. His energy is surging, thanks to white fat depositing beneath his skin. And since he's growing so fast (weight will triple by birth), things are getting kind of cramped in the womb. What all this means for me: More kicks and jabs to the ribs and time to welcome back the constant bathroom dashes!