It hurts. Help:/

Jacey • *tattoos* and *tea*... "Emancipate yourself from mental slavery. None but ourselves can free our minds"
It never used to be like this, but sex hurts like hell in certain positions. Like doggy style, or missionary with my legs high. It hurts so bad. I think the tip is hitting my cervix but I hate this feeling!! Makes me feel worthless with my love and I feel terrible. I want it to be like it used to be! If anyone can help 
please tell me what I can do!