Hi

You have a lot of opportunities after your B.Sc Microbiology course. After that, you can do M.Sc in Microbiology or you can do your post graduation in any other life sciences field. Otherwise, you can do postgraduate diploma courses also. If you are interested in Microbiology continue with that, or else change your field whatever you like. This is the right time to choose. You can also go for jobs.

Hope it helps.