Been having what I think are contractions (mostly in my back) every 10 mins lasting 30-50 seconds each for the past hour. I took a shower and had one big one and then they stopped for like 1/2 but are starting back up again. 39w1d just got checked yesterday and I was 80% effaced ftm what do you guys think?!? (I know I'm supposed to call dr when contractions are about 5mins apart)