question about first paycheck ?

Ta
I recently just got my first job and my first pay check and I've work 29 hours a week for the past two weeks with 3-4 hours over time and I get paid 7.75 and my paycheck is  only $208 is this about right ? 
I get paid every 2 weeks of course and I'm just lost ? So please tell me if my calculations are wrong 
Edit: Thanks everyone I just didn't know taxes would be so much !!
But thanks everyone for commenting