Is it common for the woman to want sex more then the male?

The sex is still great! But seeing as we are 22-23 and he lives at home with Christian parents we don't have sex there.. Which causes us to have very dry spells. We've went weeks to a month with none. And we've been together for 2 years. And oral doesn't happen very often if at all. We are both self conscious on that seeing as we aren't experienced in that field.