They sound like Braxton Hicks. But I would say visit a chiropractor and do simple stretches to loosen it up.
I am 38 Weeks and been having cramps every some Weeks for a couple months now. my midwife didn't seem too concerned when I told her about them. I always feel like I have to go to the bathroom while I have them which I usually do. then I make sure I drink some water and lay down. I try and take a nap if I can and that usually helps.
I have been having menstrual like cramps as well and am almost 37 weeks. They come and go, not constant.. hard to really time. At my last appt i mentioned it to my ob and she said if I was able to go back to sleep and I couldn't time them they were most likely braxton hicks. She also had checked me and I hadn't thinned or dilated at all
Ssme here, from 36 weeks, till now im 37 and still going these stupid menstrual like camps so anoying, cause it feels really weird and makes me anxious, sometimes feels like im going to fart and I dont lol