My cycle went off on the 24th of febuary and i had sex during my period i been filling mild cramps since my period went off what could this be ?

Many causes : The causes if pelvic pain range from problems in the ovaries, tubes, uterus, cervix, bladder, intestines and others. You will need to schedule a visit and exam to help narrow this down.

Could be:: An ovarian cyst, a urinary tract infection, endometriosis, could be intestinal cramping. Could possibly be a sexually transmitted infection like chlamydia or gonorrhea. Best to be checked.