Ttc for my next baby

Jessica

So I had my last depo shot in oct of 2016 and my next one was due jan 27 2017 me and my fiancé decided not to get it and if I became pregnant that was fine so then in June 2017 I went to my doctor because I still didn’t have periods back and we wanted to start fully trying so now I’m in jan 2018 I have had full periods back and I have not gotten pregnant. Any advice!