Ok, long story! but my cycle according to my period tracker app is 29 days supposedly. I've only been using it since September of this year. But I had my period this month, December 10th, and it ended on the 16th. My boyfriend and I had sex that night on the 16th and I knew the next morning I needed to get a plan B pill. I took the pill in the morning the 17th, and then the same incident occurred again that night, because we had both assumed the pill protected for 24 hours so I never took a pill for that time afterwards. Days later I learned that wasn't true, but then 7 days later on the 24th I started bleeding lightly, everything was brown though up until yesterday the 28th it has been red like regular period blood, and today also. I read that it can be a light period and the brown blood at the beginning could be left over from the last period. I have also had really sore breasts since the 26th. But can I get pregnant even with the second period, from the last time we were unprotected and I didnt take the pill that night on the 17th? my next period should start in 10 days on the 8th of January however I know it might be late cause of all this.