So June 16th. I had sex with my boyfriend, and the condom broke at the same time that he came. The day after I took plan b, and I'm hoping that everything works out correctly. Today is June 18th. And I'm not feeling like myself. I'm eating more than I normally do, but at the same time I feel nauseous. Is this just a side effect from the plan b? I also have an irregular period, so I won't know if I'll get it next month or not. Help?