Braxton’s.. contractions.. round ligament?

Ma

It’s my second pregnancy and with my son when I had contractions I knew something was different. I felt it my back. I’m about to be 20 weeks and today I have felt like in ache .. doesn’t feel like it’s tightening. It feels like Braxton’s maybe. Or could it be my uterus stretching?. I haven’t had round ligament pain at all this pregnancy so I really don’t remember how that feels..

I am looking much bigger out of no where. This past week, especially in the evening.

How can I pin point what’s going on? I had my son early and I am currently 8 hours away from home. So I am a little on edge.