TMI. Bad Vaginal Pain :(

I'm 18 weeks and for the past several weeks my vaginal area feels as if I got kicked in that area around 20 times. It hurts 24/7, especially when I'm laying down switch to a differnt position. It's also very painful to get up out of bed and to even walk. I don't think it's round ligament pain but I could be wrong? Help?? :(