My bf and i had a dryhumping last dec2 with our panty and briefs on. my period ended last nov30, its now dec 31 and i have no period. I m a bit worried. But my breast is hard and painful when you touch it which is an early symptom before having a menstration. I believe that I couldnt get pregnant in dry humping and there was no sign that i am pregnant, i am not vomiting or feeling nauseous. I do also know that stress can prevent my period, i am working with graveyard shift and i started working last november. I dont know what to do. Can somebody help me please??? Am i pregnant or what?