Sleeping on your side at 22 weeks pregnant is generally not going to press the baby due to the protection of the amniotic fluid. 22 weeks pregnant side sleep, because the fetus in the mother’s uterus is protected by amniotic fluid, so generally will not be easily subjected to external stimuli, at the same time, side sleep when the stomach is half of the bed, so generally will not press the child, but also can reduce the uterus on the aorta and iliac artery compression, to maintain a normal uterine arteries blood supply, to ensure that the fetus is sufficient nutrients, will not affect the fetus. 22 weeks pregnant side sleep generally will not press the fetus, if accidentally too large movements and other causes fetal abnormalities, pregnant women should seek medical attention in time to avoid accidents. At the same time in pregnancy should regularly do a good job of obstetric examination, to ensure smooth delivery.