My cycle is late this month it still hasn't come on...I have a toothache, and all I want to do is sleep. I've also noticed that my appetite is bigger?

You may be pregnant. If you are sexually active and you cycle is late (and this is not typical for you) you may be pregnant. Hypersomnia or increased sleepiness is common during the first trimester of a pregnancy as is increased appetite. Consider obtaining a pregnancy test to confirm.