Hello everyone! I really need your advice and knowledge. I recently fo…

Hello everyone! I really need your advice and knowledge. I recently found out that you shouldn't lie on your back because the baby doesn't get enough air. Is that true? And is it true that you shouldn't sleep on your right side? When I lie on my left side my heart and ribs hurt a lot, and I end up having to turn over one way or another. There's too much scary stuff on the internet; I'd like to hear from experienced women and moms.