Is it normal to crave sex all the time!!

okay so here's the deal I lost my virginity last year october, only slept with one man.. We slept together a few times maybe more than a few times ;) and we just stopped my fault really I told him that I wasn't ready to have kids just yet, he respected my wishes, but now I crave it... Sometimes its hard to say no to myself, I'm constantly day dreaming about it.. What the hell is wrong with me...