The past idk how long this pregnancy(36 weeks) , my vagina has been super tight, full and dry. Well…

The past idk how long this pregnancy(36 weeks) , my vagina has been super tight, full and dry. Well tonight it is wide open, full, and very dischargy with bits of what I think is my mucus plug. The past hour, baby has been super active and I've had the really sharp pains on my cervix plus pressure pains where he's been pushing out. I just thought it was weird to have such a big change lol. Has anyone else experienced this? #myfirstpost