I've read that the weight of the uterus affects blood flow to the baby when a pregnant woman sleeps on her back.
I'm 27 weeks and I too, heard it cuts off circulation to the baby.. I'm having a lot of back pain and my sciatic nerve is acting up.. Does anyone have any ideas to ease it??
They always say not to. Just because it cuts off to the baby. I believe after 20 weeks you shouldn't.