Is there any chance I could be pregnant? I had sex on Sunday, which is the day I was supposed to start the plecebo pills of my birth control, and the condom got a little hole in the side and let some semen get inside me. I had missed one pill two weeks ago, and took that immediately after sex, which was an hour after I usually take them. It is now Tuesday, and I ve been taking the plecebo pills yesterday and today. I expected to get my period today but it hasn t shown up yet. If it doesn t show up by tomorrow night, my boyfriend is going to buy Plan B for me.