Late period?

My period is about a week late. I took plan b 2 weeks ago and had started a new birth control a few weeks before that. My cervix is high and tightly closed. There’s times where I do get period cramps and have felt like my period has started but it’s just an excessive amount of discharge (which isn’t unusual for me right before my period). How bad does plan b mess up your body?

Jessica: I don’t think so. From what this says it wasn’t but I honestly don’t know. The only reason I took it was cause the condom my bf and I were using broke. But even with condoms he pulls out just in case something like it breaking happens.