so im 17. this has happened througout the past like year or so, but my bf & i have been dating for 6 months & everytime we have sex he has to hit it certain ways so that it doesnt hurt.. the pain is on my on my right side usually right above my pelvic.. & we had sex tonight & this one was my far the worst pain yet, i told him to do doggy  style because i usually like it but it hurt sooo bad it felt like he was trying to pop an organ lol & after the pain was all along the bottom of my stomach , sharp pains even like in my butt ( we dont do anal ) & i have this theory that because im so tiny its easier to hurt me in like my stomach & stuff.. im like 5'3" & 107 lbs😬 none of my friends have ever had this happen, but im too scared to go to the gyno. help?!