Sharp Pains in vagina

I’m 34 weeks and a few days and my stomach has been hurting a lot more and my sides and back have been hurting some too. But I’ve been having sharp pains in my vagina area.. everything I’ve read about it says it’s normal or I could be dilating or it’s possible I could go into preterm labor. I go back to the ob on the 18th but I figured I could get some advice before hand. Also.. me and my fiancé were having sex when he said something felt different, he swears he felt the baby🙄.. but I told him he’s over reacting but I also read that if I’ve dilated even 1 cm that it’s possible to touch baby’s head. Does anyone have any idea what this could be???