Low sex drive

I recently got married to my wonderful fiancé of 5 years!! Before marriage I almost always "wanted" him... But now that we have gotten married and are able to have intercourse whenever we want to I catch my self not wanting it at all. And I think he is the same way.! It's like our sex drives totally went away after gettin married..... I don't get it.!! And while I still want it when we finally do do something I just doesn't feel as good as it use to.!!