Should I Change My Job If I Am Exposed To 2nd Hand Smoke At My Workplace During Six Weeks Of Pregnancy?

I’m 6 weeks pregnant and work at a casino. I’m a server in a cafe on the main floor . There’s no smoking but I can see the slots a few feet from us. I also walk through it while on break and going back and forth. I’m sure there’s still smoke where I’m at just not as strong. I wanted to know if I should put in my notice and work someplace else