Ruined by depo 😔😔

I got in the depo in May of 2014 and my last shot was in February of 2017 and have not gotten m period and I hate it it's makes me so emotional bc I do want kids in the future and I hope that depo hasn't screwed me over I can't take it I'm losing my mind I worry everyday if I can even have kids and everything else I dot know what to do all I wanna do anymore is cry bc I have enough going on in my life and I just want to have somethings back on track so when my boyfriend and I are ready to have kids I would atleast know I have my period but I just wish I knew when I would get it back