The same thing happens to me, I'm 38 wks and 1 day and they are very uncomfortable. Sometimes I just have to sit somewhere in the store because of that sharp pains in my vagina. As far as the belly getting tight those are more than likely Braxton hicks, I get those too a lot.
Contractions. Be careful so close to date could be the real thing
Thanks...it just feels like the tightness lasts for a long time. But it does go away when I sit.
The tightening is contractions. If they go away after rest it's just Braxton hicks. They will probably happen more often the closer you get to baby time :)