have missed two birth control pills (Sat. and Sunday which is today). I take a combination pill (microgestin fe 1/20) and I skip the placebo week every time, so I am constantly on active pills. I have not had unprotected sex since I missed pills, but I did have unprotected sex the night before the first missed pill. Do I need to get Plan B? I can't take my pill until tomorrow morning because I do not have a pill pack.