Still, you manage to decorate the nursery. With birth pending, you suddenly feel crazed to complete old projects, and get the house in ship-shape for Junior. Speaking of which, the little one, now at 29 weeks, weighs two pounds and nine ounces and is 13 and three-fourths inches long. His or her lungs have been busy creating surfactant, a substance needed for breathing. By 32 weeks, your baby measures 15 and one-fourth inches long and weighs three pounds twelve ounces.
Brain development is rapid.
The eyes can now track movement and the iris respond to light and dark. The baby may move and sleep in more definable patterns, thanks to visual clues from outside light that filters in through the uterus. Relaxin, a pregnancy hormone, is responsible for the softening of hip joints. As a result, you may catch yourself waddling. Also, the large uterus throws your posture off, causing you to have a slight swayback appearance.