I'm so excited to be where you guys are at, my due date is still 84 days away lol
I was just about to post about this because I was wondering the same thing, and had to go and see my doctor yesterday to figure it out i'm 37 weeks and 3cm dilated already and she informed me that not only is my baby's head extremely low but the closer you get to labor the more everything loosens up so my whole pelvis is soar I can barely open and close my legs without wanting to cry and all the pressure just makes it worse but hang in there mommy we're almost there.
Yes!!! Its the babies head...totally normal and its probably low your getting ready to have a baby at any time this happens