Okay, so I got the shot one time. I was supposed to go back for my second shot. July 28th. I didn't go back, because my boyfriend and I have decided to try to get pregnant. I have read about how it takes an average of 10 months to conceive after the shot! I read that your period must be regular to get pregnant, or at least have a period. Well I've spotted like once every other day. Very very light pink. Could I maybe be pregnant? (I read you can also become pregnant immediately) and if not, how long do you think I should wait to begin testing? I just really want to be pregnant, and I feel stuck . :(