35 weeks and period cramps/contractions?

S

I had what I think are contractions today that were about 4 mins apart. It was like a period cramp mixed with my uterus tightening. It wasn’t painful but definitely uncomfortable. Eventually it went away. I don’t think this is Braxton hicks because it did have somewhat of a pattern? I’m not sure though? Did anyone have this and does it mean I’m dilating ? I thought this was early but this is my second baby so maybe it’s not. Also baby is still high, I’m pretty sure she didn’t drop yet.