Cramps? Vaginal Pain?

Brooke • ❤️AxtonLayne❤️Feb.10,2016❤️
I'm 31w6d today and for the last week I have been experiencing some cramps down low that usually hit when I get up or sit down or change positions. It almost feels like gas pains. And also my vagina is really sore. It hurts to wipe in the bathroom. It feels like I have had a lot of sex and am raw down there but hubby and I have not done the deed in two months. Occasionally I will also have some sharp pains in my vagina. Can anyone give me any insight on what this may be and if I should be concerned???