im 25yrs old. i have 2 kids and with my 2 it was easy for me to conceive. i dont know when i ovulate, i have never kept track of that. my period starts on diff days, sometimes the 6th, sometimes the 8, and sometimes the 10th. i have had unprotected sex, the pull out method with my boyfriend for 7 months, on jan 14th he didnt pull out when he finished. i had just finished my period 3days before, could i be pregnant?