So tired...

CJM • Mom of 4 (soon to be 5). 💙💙💜💙💙2015, 2015, 2017, 2020, & prego!
This is my first pregnancy, so I'm not sure what's typical or not. 
I'm currently 4 weeks and 5 days along and I can't stop sleeping. I've napped almost everyday and I've been sleeping in until 8-9am when I usually get up at 7ish. 
I'm lucky I work from home or is probably be fired by now. 
Is this typical?. I'm not a napping type person usually. 
Please let me know...