For how long like which week in pregnancy is it ok to sleep at your back?? I have heard it hurts your legs and back and can cause cramps in 3rd trimester but dont know is it true
Re: how long?
you shouldn’t be comfortable lying on your back in your third trimi anyway! but yes, its not advised because it can put a lot of pressure on your spine and can cause issues for the bubba too.
see this: Is it safe to sleep on my back during pregnancy? | BabyCenter
Re: how long?
what sgc said^^you cant even think to lie on you back in third trimester....it hurts alot!
Re: how long?
Doesnt hurt me though 
Rather feel comfy at the best on my back. Maybe because it somehow soothes the back lying. But well just CANNOT since it might create problem for the baby. Movements hindrance basically. Lying on one’s left is the only option. :hinna: