Feeling very sad lately.

I had my first MC in January this year and my second in July. Today, I would have had an almost 1 month old with my first or i would be 18 weeks along with my second. Im just really sad lately. It was too much to bare to have another MC, so i got the depo shot. We are ready to try again, but i still havent started my period and i feel like i never will. Im just so sad.