Im sexually active , im on birth control recently my boyfriend and i had anal sex, he ejaculated in me . Although i cleaned myself off afterward i was concerned even though i am on birth control . Almost a month later im late on my period as well as im feeling full, urinating alot more frequently . I have a verry swollen lymph node on my neck and its slightly painful at times . Im also constipated . Are any of these connected and should i worry ?