Possible Pregnancy

Hello again, As I said before, my bf and I are trying to have a baby. I started my period on Oct 17 which usually last 5 to 6 days, We had sex on the 22 23 25 27, which I believe the 25 and 27 was during my fertile period, i was wondering if I could possibley be pregnant or had gotten pregnant doing that time. My next period is due the 12th of this month. My cycles are 27 days never irregular. This would be our 2nd child. Please get back. Thx