My boyfriend and I had unprotected sex for the first time on the 23th of Jan - he said he pulled out but I wanted to be safe so I took plan B the next day.

About 6 days later, I notice brown spotting and I’m starting to have cramps. It’s now Feb 3 and I’m having light bleeding, but more than spotting. I’m not sure if it’s an early period but my period isn’t due for another 18 days. Is this normal after taking plan B?

Also: I just started taking the pill on the 14th of Jan. so I’m not sure if that contributes to the bleeding.