Pregnancy Questions and Answers

It is best for you not to lie on your back when you sleep or rest after 16 weeks of pregnancy. As your uterus grows, lying on your back can place the uterus on top of important blood vessels {inferior vena cava and aorta) that run down the back of your abdomen. This can decrease circulation to your baby and to parts of your body. It may also be harder for you to breathe when you lie on your back.