Hello, I am on oral contraceptives and recently went on vacation, during which time I wished to skip my period. I talked to my OBGYN and was instructed on how to do so. The last four pills in my pack were placebo, and I was told to take the first placebo pill and start my new pack the following day. I did not receive my period, as planned. I continued to have unprotected sex with my boyfriend, as my doctor had told me that skipping my period would not affect the accuracy of my birth control. For the past few days I have been experiencing an upset stomach, having to make frequent trips to the bathroom. Often times I also feel like I'm going to vomit, however I have not yet. I still have about two weeks until my next period. Is there any possibility I could be pregnant??