The depo shot...your experience please!!!

So I was on the depo shot for a little over a year. I have been off of the shot for almost 2 years and my periods are still not regular. Dec. 28 will be three months without a period. Before my last period in September I was at least having a period every other month. Anyways I would just like some input or people's experiences with this form of birth controll. Just worried because two years ago me and my SO lost our baby when I was 6 months pregnant and we have been talking about trying again and I just don't know how this issue will effect that. Scared, worried, just need some input.

Thank you in advance!!! ?