Plan b

So I took a plan b or actually I took a take action which is the cheaper version of a plan b. But I took it about 13 hours after having sex because the condom had broken and I got scared. It’s been about a week since I took it and I started bleeding. It’s a dark red color and I’m scared it might be implantation bleeding. I know it’s not my period because I got it 2 weeks ago. Could it also be a side effect from the plan b? Or am I pregnant?

(Edit): So I read a couple of the comments saying to look at the pamphlet that came with the pill but I lost the pamphlet. I’ve been looking everywhere and I can’t find it that’s why I got scared and decided to ask here. Another thing is that when I went to pee again the bleeding wasn’t a dark red color anymore, it was a bright red (like a normal period red). Is that normal?