I had unprotected sex last month and took plan B the day after exactly 28-30 hours after the sex. The day I had sex my period was 3 days late. My period came the day after (the same day I took plan B) and it last 8 days , which is really rare since my period is irregular. This month my period was supposed to come on sept. 14th and is late again 3 days. I'm worried the pill didn't work, and I feel all bloated and like my belly is growing( or I might be getting fat lol). I'm so stressed out. I'm planning to take a pregnancy test. :( any advice?