Ok calling all mom doctor's lol. I went to bed last night with pain starting in my left thigh. Woke…

Ok calling all mom doctor's lol. I went to bed last night with pain starting in my left thigh. Woke up and it was worse and I can't sit on my left side because it hurts so bad. Can't even lift my leg without it hurting. Also kinda have to limp. I know I did nothing to it to cause this. So why would this be happening out of the blue? It's starting to scare me because I think it's getting worse. What I was reading online said it could be a blood clot?