ttc after the depo

Tia

This is the second time we're ttc and the first time took us 2 years. our son is 19 months now and I'm 3 weeks off depo still waiting for my period to start so we can start trying again. My husband is the one with the fertility problem so it'll take us a long time if at all to get pregnant again. How long did it take others to get a period after almost 2 years on depo.