I lost my virginity to my boyfriend on Saturday and although he penetrated me for about 10 seconds, if that, without a condom, I told him to pull out and put one on which he did. This has happened a few times but we always stop straight away and get a condom. I'm really worried that I could be pregnant because my period is a day late. He's never reached orgasm with or without a condom while we've been having sex. Help