sweetie, you do not get symptoms of pregnancy right away. Things you hear of like nausea and most other symptoms do not start until you are 6 to 7 weeks pregnant on average as it takes that long for the hormones to build up of the pregnancy to cause the symptoms. Those are also PMS symptoms. :>) You COULD be pregnant though as you had unprotected sex around your potential ovulation time. You have to wait though. When you expect your period, you can take a test if it doesn't show up. You can try an early detection test around 4 days before you expect your period and I got a positive with one of these tests 4 days before my period was calculated as due, so they do work. You just run the risk of testing too early and getting a false negative. Anyway, wait until your period is due and you'll know for sure. Come back and tell us, okay?