Severe Cramping!😭

I’m currently 35+7 and I just woke up with severe cramping in my lower left side. (Almost like menstrual cramps but WAY worse.) I laid there for about 15 min crying trying to roll over on to my other side or try to get out of bed because I had to use the restroom. I even tried waking my SO up to see if maybe he could help me try to roll over but he didn’t wake up. Finally I was able to slowly roll over and sit up, then the cramping stopped.

This will be my first baby and I am scared that something happened or will happen. What do I do? Has this happened to anyone else?