I think I am having contractions

Sonia
Hi I am 36 weeks and 4 days and I am experiencing some type of pain that comes from my back to the front of my belly level pain from 1 to 10 they are like 4 pretty intense.. But I have not lost my mocus plug yet or water break nothing does this mean I am going to be like those miserable woman being contracting for like 2 weeks before give birth? Cause my first child was so fast.. Should I call my doctor or until I don't see water breaking I have to suck on it? Whew 😩😓