Anything is possible if you had unprotected sex. However, it is not very likely that you were near ovulation at this point in time. Ovulation (release of an egg) normally occurs 14 days before the start of your next period. Having unprotected sex anywhere from 5 days (more likely 3 days) before that date or one to two days after that date can result in a pregnancy. We don't know what your cycle is like so we can't tell you if you were ovulating or if you are pregnant. The only way you can know is to wait and see if you miss your period. If it turns out that you are not pregnant and you do not wish to have another kid right now, I suggest that you invest in some kind of birth control like condoms or the pill.