I returned from vacation about a week ago. During the time of my vacation, I was supposed to get my period. However, to make my period come before my vacation, I stopped taking my birth control pills approximately 1 week before I left. The Friday before I left, I had unprotected sex, however on Saturday morning, I had my period. I resumed my pill when I went on vacation, but lately, I have felt bloated, crampy, and my breasts are enlarged and tender. I should be getting my period next Wednesday (3/26/02). Is it possible that I am pregnant, or is this a side effect of intentionally skipping my pill?