Hello,

I am currently on birth control and had sex Thursday night (4 days ago). We always use a condom but dont usually put it on right away. We will wait a little bit to pit it on. However, I am on the pill so I didnt think that this was an issue. Today, I noticed brown discharge and I am supposed to start my sugar pills this sunday, so I should be getting my period next wednesday. Should I be worried? I've heard that Plan B works up to 5 days after, should I buy it? Thank you in advance for your help.