[kcey]

I am wondering when you shouldn't lay on your tummy during pregnancy? Will I hurt the baby by laying on my tummy?

[J_9]

You won't be able to lay on your tummy much longer. LOL

Also, it occludes (closes) major blood vessels that supply blood and nutrients to baby.

[MaiaHoneybee]

I'm 18 weeks and I am just now noticing a little pressure in my belly when I'm on my tummy, so I normally just hike a leg up to give me a little room. But you're body will tell you. If you're asking, that means you probably feel it, which means it's time to get a pregnant pillow or start sleeping on your sides/back. Actually, I heard sleeping flat on your back isn't good either. But I'm not sure. Good luck!

[ang8318]

You may want to avoid also sleeping flat on your back. As the weight from the baby can put pressure on a major vessel and can cause light headedness and a drop in blood pressure. The best way to lay is on your left side if you can.