Suggest Remedy For Pain In Abdomen And Pain While Urinating After Intercourse

hi i am 16 and weigh 126 and i am 5'5... ive been sexually active with my boyfriend for a month now and last week when we did my stomach hurt really bad when having sex and its never hurt before. The next day i went to pee and it hurt and its been like that for a week now and i also have a weird like samon smell and i am a very clean person.! never have i had this problem so please help me