On & off period cramp @ 39w

Currently @ 39w and past 2-3w ive been having on & off moderate period cramps. But now @39w im also having lower back pain, vaginal sore a little along with the period cramp every few hours. But last check @ 38w 4d im not dilated. I was hoping its contraction but i doubt so. Some people say its braxton hicks but all these while my braxton hicks never hurt, just tightening feeling thats all. Is it normal to feel these ? #FTM