Im 36 weeks pregnant and I just had this happen to me twice in a row. I was sitting on the couch and I stood up and had a sharp pain in my vagina/cervix. It wasnt that bad... Then I got up again a second time about 15 minutes later and this time the sharp pain was so bad I fell to my knees and it felt like a very heavy pressure on my cervix... What could this be??? I got up again a few minutes ago and I did it very slowly and didnt have the pain.. Did I just get up too quickly???