Braxton hicks contractions?

Sandra
I just turned 30 weeks on Friday and I've started having at least one Braxton hicks contraction since then. everyone has been saying that I'm not going to make it another 10 weeks. I've been really busy today cleaning and organizing my house and Now my lower back borderline butt hurts really bad, I'm finally sitting down now. Just wondering how often are you getting Braxton hicks contractions or if you had them in a previous pregnancy did you go early?