Not sure how much to worry here. I feel like it’s a lot.

On November 19th, had sex with a guy. I was on the last day of my period. I took Plan B on the morning of the 21st. About a week later, I started bleeding again, for a good 4 days (almost to the level of a period, but not quite). I’m not sure how much the Plan B would mess with my cycle since I took it just a day after my period ended.

The point to all this being that according to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a>, I was supposed to start my period a week ago. I still haven’t started. I’m terrified, and I’m too scared to take a pregnancy test...

Is it at all possible that I’m just late because of the Plan B (and because I’m stressing the situation) and that the bleeding that happened after taking the pill was my cycle being messed up and retimed?