After receiving my first depo provera shot I got an immediate loss of periods.
My boyfriend and I had unprotected sex a week or so after. Can I be pregnant or is it normal?

If you do not wish to become pregnant, it is best to use protection for the recommended waiting period. DEPO can make your period different too. Test for pregnancy when you expect your period and don't get it.

Call the place that gave you the DEPO shot. They can give you advise.