22No Stomach Sleeping
Just about everything in a woman's daily life changes when she gets pregnant — in the second trimester, she even has to change how she sleeps. In the first 12 weeks, the baby is so tiny that the mom's sleep position doesn't matter, but pretty soon the fetus gets so
big that sleeping on the stomach will squish it.
In fact, doctors recommend that women sleep on their left side as much as possible to keep pressure off of a blood vessel that could cut off the supply to the baby. The transition can be difficult for some women, but it's necessary, starting in the second trimester.