Lurky loo...
I was on it for about a year. It took me 18 months to get my period again after my last shot. Then it took me 4 cycles to get pg with DS. Everyone is different. I would say plan on it taking 18 months to get your period again, but know that it can happen sooner. If you get your period before you're 100% ready to TTC, then just use protection. GL!
P.S. I believe they say to wait the 1 yr after your last shot to TTC because that's how long it can remain in your system. But again, everyone is different and metabolizes meds differently.