Depo 💉💉💉

So glad I found this board!! So I had 3 injections always had a period the entire time I was on depo it.  my last injection  was may 12th I was due for the next aug 10-18 I decided to go off it and quit BC altogether so my DH could concieve. Last month I tested positive on my OPK so I am ovulating again. (Great news!) however AF is two weeks late with no BFP. I got a blood draw today so waiting for results. I am having light brown discharge now. I'm wondering about thAt brown stuff!! Any advise??