Can your boyfriend come inside of you while your on the depo?

It probably isn't a good idea to try it but I can say I have been on the depo for 10 years and I have always allowed that.. and never gotten pregnant. When I was younger I went to my doctor to get a pregnancy test because I thought maybe I was. My doctor laughed and said he didn't want to give me a test because I absolutely could not be pregnant on the shot. Something about your body fooling itself into thinking you are pregnant; therefore, you are not making any eggs.