Labor Pains ?

I keep getting “ contractions “ like period cramps but strong ! They come and go.. I don’t know if their contractions or Braxton Hicks.. or.. who knows what . I never had pain with my first.. my water broke and I never had pain . So this baby is something different and honestly, more nervous because, I don’t know what to expect on pain or in general.

Should I go in if it doesn’t stop ? Call my dr tomorrow morning ? Or just wait and see if they get super strong?.. I’m 37 weeks today . They just feel like strong period cramps .