I was having cramping and called my dr, they had me come in to get checked out, turned out I had a minor yeast infection with no other symptoms.

I’ve been cramping on and off too, not at any specific intervals. My midwife says if they intensify and get closer together (consistently) to come get checked Otherwise it could just be your body starting to prepare for birth. I was having contractions since 34 weeks for my last pregnancy

Call your doctor and see what they say but going to the hospital to be monitored can be the best thing to do especially if you’ve been cramping all day and staying hydrated.