Sooo tired

Kristal
This is my second pregnancy, and I'm 7 wks preggers.  I can't remember being this tired last time. Granted, my daughter is 3 and a half, so it's been a while since I was pregnant but man, I'm lucky to make it to 8:30 most nights, which sucks when my 3 year old isn't even asleep yet. Anyone else this tired so early on?