If my girlfriend and I had sex a week before her due period with her having a bit of stress can she be pregnant if she has been spotting for 2 days or so during the time her period is supposed to start? So one week ago we had sex the condom broke and we are scared its a week later and she is expecting her period any day and all she got was spotting. She hasn't told me if it ended or not but I know she had it for two days and her stomach hurts today which is the day after her last spotting. Can it be a small period just because of stress or is it implantation?