Vaginal pain

Jeanette
Sorry Tmi maybe but I have constant pain in my vagina almost period like throbbing.... I have no bleeding but have had a sharp pains  in my cervix all day... Especially when the baby moves. I don't know how to explain but I feel this is not normal. I don't think it's Braxton hicks either but again I don't know. I'm currently 25 weeks. Any one else can relate???