I used to sleep on my back, and tried my hardest to sleep on my sides but always ended up on my back. Starting around 26 weeks though, I will wake up if I go on my back because I can barely breathe from all the pressure and I'm dizzy. I'm carrying twins though and already had 4 pounds worth of baby by then. I think your body will tell you when you need to stop sleeping on your back, in the meantime don't worry about it :)
My doctor and prenatal class teacher always say it's honestly more important to get a good night's rest (which is so hard the later in pregnancy you are!) than worry about the position you're in. Pillows do help though :)
Thanks I think im gonna try the body pillow thing
Yea deff use alot of pillows! thats what i do im 34weeks 1d and i occasionally wake up on my back.. I use a body pillow and kind of wedge it behind my back and sleep on my left side ( best side to sleep on for baby because of max amount of oxygen) And then i put a pillow between my knees on the left side.. That way if i kind of flatten out the pillow keeps my somewhat elevated so that im not on my back completely.
I slept on my back throught all 3 of my pregnancy's, I use a lot of pillows so when I am on my back I am proped up to almost sitting. When you are futher along you will wake up all through the night to change your sleeping position.