Will it be possible for me to obtain an M.S in microbiology or hematology?

With such a degree what are the job opportunities available for me and how much can I expect to earn with an M.S degree in this specific field?

I just changed my Major and Im trying to decide if this is what I really want to do.

ok, so this question is opinionated, so you don’t have to be very detailed with your answers, however, whoever gives the most sensible answer will get 10pts, thanks^^,