I had sex with a guy last Wednesday and the condom broke. I took plan b the next morning at 11am. Today I started spotting and then full on bleeding. So plan b has started my period early due to my ovulation day coming up in a few days. BUT my period isn't supposed to start until the 26th of February.

I got birth control pills from my doctor last week..

Should I start taking them today because it's the first day of "period"? Or should I wait until my real period comes next month?