I'm 25wks and I've had them since 18wks this pregnancy, from 32wks with my first. My dr said some women can feel them from as early as 12wks tho. I went in this week as I was getting strong ones a couple of times an hour, cramps, back pain, watery discharge and decreased movement, I'm high risk which also keeps me on edge, but they confirmed they were just bh still. Dr said its not normal tho and suspects an infection so of it gets worse maybe get checked.