So I'm a 20 year old ftm, I have a 8 month old daughter that I've been raising myself. I recently had a one night stand and I think I may be pregnant, I'm really stressing out about it.. any advice on what I should do.?

Also he's my bosses son... ugh please help

I know I'll need to take a test I just don't know if I should tell him when I find out (if I am) or if I should wait. I don't want to to interfere with my job..