If you had unprotected sex, then yes, there is a chance for pregnancy and STD's. If you are worried about that, then make sure you use protection.
As stated above, you had unprotected sex so put yourself at risk for pregnancy and std's. good luck
Any amount of time you have unprotected sex... In the shower, in a bed or in the back seat of a car... If its unprotected sex, there is *always* a chance to get pregnant.
You can clean his penis all you want, its what comes out of the penis that ends up inside your vagina that will cause pregnancy.
Please practice safe sex, if you feel that you need to be sexually active.
Just curious, how old are you? Maybe you should reconsider if you should be having intercourse or not. ANY length of unprotected and even unprotected sex can result in pregnancy. Hope that helps.