after losing virginity is nausea and stomach ache normal?

First of all, it is natural to feel a bit weird after you have lost your virginity. But if you are thinking of being pregnant according to all these symptoms you have, then you must have had the unprotected sex. I think you should have used the protection, at least at the first occasion, but there is no going back now. Do you have any other pregnancy symptoms, like swollen and tender breasts, do you feel some cramps or something? You should do a home pregnancy tests so that you are sure whether you are pregnant or not, and than you’ll know what you should do. If it happens the result is negative, you try to be more careful from now on. Have you ever considered taking the birth control pills? Being on the pill would provide you a safe sex as long as you want, I think it would be a good thing for you as you have lost your virginity just recently.