Extremely painful back

Ni

I’ve already contacted my doctor and I’m waiting for a call back but I wanted to see if anyone else is having this issue. I’m 18 weeks pregnant and last night I went to bed (on my side) with an achy lower back. Well it woke me up around 5 am when I turned over hurting so badly that it made me cry. It’s like a muscle ache that is only on my right side of my back. I’m trying to lay on my side with heat but moving at all is excruciating. On top of that I think I have round ligament pain in my hips! AND a crampy period like pain in my abdomen when I turn over.