last week i had unprotected sex. i have had sore boobs all this week,it hurts to put pressure on them, walk down the stairs, its not like my usual pms tender boobs which usually come a few days before my period, and the pain is short and not that bad. I also was diagnosed with painful periods, i usually feel a week prior to my period,the pain is always the same, sharp shooting pains near my uterus and ovaries, and that hasnt happened. the cramps im having are light, and more near my lower tummy. my pms symptoms are pretty much the same with every cycle.also i notice a slight heighten sense of smell, and i think ive been a bit moody lately(that could be from working OT these past 3 weeks, so i dont know if i should count it as a symptom or not). i took an early pregnancy test,right when i woke up and it was negative, my period is supposed to be due in 3 days, do you think this could be early pregnancy signs or maybe just a random change of pms symptoms?