help TTC after depo vera shot

so i been off the depo vera shot since April 2015 and my periods are back to regular they were regular by june 2015 but now it's already May 2016 i been TTC i'm really sad because i just want to have a baby , me and my boyfriend are both financially stable and we both want to start a family. i feel like i'm starting to become depressed over this because i feel broken i been taking pregnancy test after test and everytime i see negative i just wanna cry because i try so hard to have sex when i'm ovulating i just want to give up already cus i just feel worst and worst each time all i want is to give birth to a beautiful healthy baby how is that too much to ask for? i never wanted the depo vera shot my mom forced me onto it i'm so frustrated and sad. i need help TTC 😩😞