My girlfriend accidently missed 2 pills. We had sex and I on sunday of the third week and I did pull out before I came. She went to take her pill that night and realized that she had missed pill on friday and saturday of her second week. She took all 3 pills on sunday. I know there is a chance she can be pregnant but how great of a chance is it? Well another thing is that her period started on the third week of her previous pack of pills last month and her period lasted 2 weeks. Could that mean that her ovulation period should of ended on week 1 of this pack?