Brown discharge 6 days after taking Plan B

Hi ladies,

My boyfriend and I had sex on Sunday (protected) however the condom got stuck inside me. A little bit was hanging out so my boyfriend pulled it out. It literally wasn’t shrivelled inside it just came out long as normal!

However to be on the safe side, I went and bought plan b and took it 30 minutes after the incident happened. It’s now Friday night almost a week later, and I have brown discharge:/

Is this normal? I’m starting to freak out a little :( hope someone can help !!!!