Two weeks no period

Back in April I had a missed miscarriage and Drs didn't give me much choice of what I should do, (actually they told me nothing other than baby had no heartbeat) so after weeks of trying to get back to normal I started Depo, two shots I got married and didnt want to have to worry about getting my period on my wedding day so after that last shot I stopped. It's been since September. I had a period (very short, about one day) in October and I haven't had once since. I would love to have my rainbow baby... and it's mentally starting to mess with me bad. I work in a daycare and half of my co workers are pregnant. I'm constantly hearing about how hard it is and ive been praying to the baby Gods to make my symptoms be from a baby.. I believe since my miscarriage I had a extreme hit to my immune system and my hormones. So I throw up almost everyday, my boobs hurt constantly, I'm like a cat in heat. I'm peeing every half an hour almost. I'm just frustrated. Last week I took two tests both negative. I was thinking about taking it again this week but I feel I'm just gonna get a negative. :(