My girlfriend was supposed to get her period yesterday. She is not on birth control. We had sex 14 days ago on March 11th which by my calculation would be her ovulation period. It is the first time we have had sex and her first time ever. We used a condom and I pulled out before and i checked that the condom did not break. She has been feeling sick in the morning and at night and her breasts hurt but this happens to her a lot so that is why I doubt that it has anything to do with this. Can you tell me if there is a chance that she is pregnant? Thank you.