Almost 15 weeks

We're almost 15 weeks and I'm feeling lots of changes including my little belly growing. I feel like it's being pushed out from the inside and it makes my ab muscles feel like I've spent all day doing crunches. baby now measures about 4 inches long, crown to rump, and weighs in at about 2 1/2 ounces (about the size of an apple).

S/he's busy moving amniotic fluid through her nose and upper respiratory tract, which helps the primitive air sacs in his/her lungs begin to develop. His/her legs are growing longer than her arms now, and s/he can move all of her joints and limbs. Although his/her eyelids are still fused shut, s/he can sense light. If you shine a flashlight at your tummy, for instance, s/he's likely to move away from the beam. There's not much for your baby to taste at this point, but s/he is forming taste buds. Finally, if you have an ultrasound this week, you may be able to find out whether your baby's a boy or a girl! (Don't be too disappointed if it remains a mystery, though. Nailing down your baby's sex depends on the clarity of the picture and on your baby's position. He or she may be modestly curled up or turned in such a way as to "hide the goods.")

What will those first movements feel like? Women have described the sensation as being like popcorn popping, a goldfish swimming around, butterflies fluttering, a tapping sensation, and bubbles. You'll probably chalk up those first gentle movements in your belly to gas or hunger pangs, but once you start feeling them more regularly, you'll recognize the difference. You're more likely to feel these early movements when you're sitting or lying quietly.