Definitely first timers can do that. But there's no way that I could do that with 3 other children running around. (although it would defnitely be nice to spend the entire first week just caring for new baby!!!)
Oh, and the belly thing . . . all 3 of my boys were belly sleepers from almost the beginning. I wouldn't worry too much about baby sleeping on the belly. I worried about that alot with my first, but finally realized that he just slept better that way.