HELP!!!

Okay ladies i have been having nipple pain for 4 days now along with lower abdominal pain and a lil nausea im supposed to start my mentrual in 5 days but idk if its too soon to know if im pregnant or not but my nipples hurt really bad i just had to sit up because it felt like a bee was stinging my right nip i know its tmi but i need help thanx in advance