I just found out that I'm 5 weeks pregnant (found out last week) and as of yesterday, I'm feeling completely exhausted. All I want to do is sleep. I work part time and go in tomorrow from12-8:30. I can't just take a nap because I have a 3 year old. Of course I can't drink coffee or any other caffeinated drink. Does anyone have any advice for making it through the work day without falling asleep?