Okay so me and my girlfriend had unprotected sex around the 23rd of June or something around there. I haven't  ejaculated or any of that before we had sex and we did it for about five minutes until we decided to stop because we were scared, I wasn't ready to ejaculate at the moment so I thought everything was okay, so today my girl told me her period is one week late and I'm starting to get worried, is she pregnant? Is one week of her period being late bad?