I think im going to since with my son my water had to be broken ive tried telling my dox but she never seems to care but i def dont want to chance it.
call your OB immediately. since you're already at risk for PTL, you don't want to play around and assume they are BH contractions. Since you already have one baby, you know that 31wks is way too soon to go into labor if it can be helped.
I'd honestly go get checked at L&D right now, if it were me.