Is this normal???!

Hey ladies , I had sex 7 days ago and the condom broke and he came in me. I took plan b that same day. Less than 10 hours . About 2 days ago I started spotting brown and just yesterday I started bleeding red and it’s heavy so is this my period or withdrawl bleeding ?? It’s very early but plan b makes your period come early or late right? I just don’t wanna be pregnant . Please please help me