How many weeks r u pregnant??; R u tryin to sleep on ur back..?

In the second trimester and the third trimester, you can imagine as your uterus is growing, there's less room to take a deep breath in, so it can feel much more constricted and harder to take that breath <u>in</u>. So, that's really common. It's nothing that is acutely getting worse, suddenly getting worse, then it's probably just related to that pregnancy. In general with the shortness of breath, you need to pace yourself, you need to relax. And if you're lying down and you're feeling worse, you need to sit up and make sure that that feels better. Standing straight with proper posture helps to lengthen the body and relieve pressure on the lungs. Sleeping on your left side may also help you breathe easier throughout the night. And if none of those things are helping, check once with ur gynec.