Big time pain.

I want to say two - three months ago I moved weird and the very low of my back practically my tailbone popped and it felt so good to pop. But fast forward to now, I have a hard time moving since that popped and it's just random times, I have to hold my boyfriend and my boyfriend help me move if I want to turn over and it hurts really freaking bad. Should I get it checked out? I know once I get further along in my pregnancy it really will hurt bad, and I don't want to deal with that if it still feels like it when I give birth, especially if that pop did something weird to the bone. Would my baby doctor be able to check and see what I've done to it or would I have to go to an actual doctors office?