Pregnancy or plan B

Hi guys so I am currently stressing out about my situation and need guidance asap. Last Friday I had intercourse with my bf and he had a condom. But the condom broke and he pulled out when he noticed. (He did not finish inside of me) I was still a little worried about Precum so I took a plan B on Sunday. A couple of days ago I noticed some pink/ reddish spotting in the shower. And today it was brown and red. Ofc being anxious I looked it up on google and kind of psyched myself out. I had just gotten off my period when we had intercourse so I don’t know what this means and I’m a little scared. Let me know pls!!! Has anyone else experienced this after taking plan b???