BRAXTON HICKS - FTM

Sabrina
So i'm 38 + 6 today. DD is in 8 days and this is my first baby. I have no idea what braxton hicks are. Sometimes I get period like cramps but i've been getting those for the last few weeks. They are very tolerable so I wouldnt consider those braxton hicks right??? Now last night I had this really weird pain in my vagina... like it was tightening and everytime I got up to use the restroom it got worse. (Used the restroom 3 times) I didnt sleep well at all last night. Is that just my body getting ready for labor?? Because in my opinion i've had no other signs that baby is coming. In fact I think he'll be coming later than his DD because i'm still carrying him high...