I Had My Mirana Removed In Early November. I Have

I had my Mirana removed in Early November. I have had regular cycle and one in December that lasted for 15 days, after it was 9 days late. It ended on January 1st and I have not had one since. My fiance' and I were sexually active on Jan. 23. My period tracker still puts me as fertile on the 24-30th with ovulation on the 29th. Could I possibly be pregnant?