Is it gas? That's what mine was. When I would try to get in the fetal position it hurt the most.
Could be that the baby is pressing on your sciatic nerve
This happens to me last night and was i terrible pain and me and my poor hubby didn't get sleep :(
I've on my right side specially at night when i sleep. I told to my doc. She said that itz bcz of baby's weight which is more on the right side.
My pain has started since my pregnancy and its not gas. Nothing helps but letting the pain go away on its own. It's just on my left side.