I had my last period on April 7th 2012, I had untrotected sex with my husband about 8-10 days later and I started having brown discharge a week later. Here is it May 16th 2012 and I still have not got my period.. Could I be Pregnant?

I assume you mean pregnant, and of course you could be, unprotected sex, I best guess it may have been near a prime fertile time. So I assume you and your husband are trying to have a child.

But it should be a good time to try a pregnancy test. If it is negative wait another two weeks and try another one.