ok so every since i lost my virginity in the beginning of December （im15）i have had horrible periods!i get awful pains at feel like some one put a 100 pound weight over my ovary‘s, and even after my period my hole waist is sore (like it hurts to wear a belt) and it keeps me up at night and when i do fall asleep i only get a few hours. i get really moody and aggravated. i never was like this before i had sex but ever since my period had beeen god awful. also before i lost my virginity i only had my period for 4 or 5 day and only bled a small amount now its a full 7 days and a lottt of blood. has this happened to anyone?what can i do about it ? and could something be really wrong? any help would be great

thanks