losing virginity

Okay so I want to lose my virginity to my current boyfriend but I'm worried about the details... such as what if I have to pee? And after, it would seem so cute to be all cuddly and just fall sleep, but I don't want to wear my makeup to bed because it will clog my pores and also I'm wearing contacts so I can't sleep with those... I don't wanna be like "hey um give me a second be right back." I feel like it's ruining the mood. Any advice???