I haven't been able to since I got pregnant. It hurts me even worse now..I know my baby boy is in my lower back..my youngest son was the same. I can only sleep on my sides mainly left little man doesn't like me on my right he gets in a weird position and feels uncomfortable

The baby's weight can also damage nerves in your spine. I now have infamed discs in my spine from my first pregnancy and sleeping on my back. It's the worst.

I read that online

It depends on how many months you are. If your further along it can be hard to sleep on your back because you'll have problems bleeding. And if the baby is a good size they will lay on your lungs.

My doctor said to try to sleep on my sides .

That's the same question I had lol

My doctor said it was fine unless I got shortness of breath, anything goes numb or dizzy or light headed.