I'm almost 4 weeks, no morning sickness yet but I stay tired almost all the time. I work 12 hour shifts from 6 am to 6 pm. Yesterday at work I lasted about 7 hours and then I was so tired I had to fight myself from falling asleep. Then today I get to work and it already started an hour in, I used vacation and came home. I sleep about 6-7 hours on the days I work and a little more on the my days off. I haven't told anyone at work, we were trying to wait until 6-8 weeks, but now a lot of my coworkers are starting to catch on and saying that they think I am. This is my second pregnancy, my daughter is 7 now and I don't remember being this tired before, however that was before I started working. Even on my days off all I want to do is lay around and sleep. Does anyone else have the same symptoms, and any idea on how to make it better. It's really impossible for me to sleep longer, with 12 hour shifts and a boyfriend who works nights. Thanks everybody.