Me and my girlfriend are 20 and we always use protection. We had protected sex 11 days after her period started and also due to time constrained did not ejaculate. She then came down with a cold 1week after we had sex she insists not to worry because we used protection and that the cold was due to and bad weather where we live. My only regret is that we had sex on the 11 right before her fertile period. Her period is due next week what are the odds she might be pregnant.