What is wrong with me?

Lately, for the past week and a half I have been very tired. I have been sleeping a lot. Sometimes I can not even get up until 1 p.m. I wish I knew what was wrong. Is some unforeseen force taking my energy, or like some of my friends have stated am I pregnant? Yeah highly unlikely!! Especially the last one, I don't want to get my hopes up just to be disappointed when I'm not. I know that in time heavenly father will bless us with a baby, whither we have one or we adopt. Well tomorrow is my day off, so after my company leaves I think I a just going to relax and try to recharge my batteries. Hopefully that will help in my tiredness.