Quoting Mamas 1144:" Hey ladies Im just wondering if it was normal for cycles to progressively get shorter and then get long ... [snip!] ... on Depo? Since I've been off of it I've had a 53 day cycle then 38, then 28 and now I'm going on 42 days and still no period."
I dont know, Im guessing it might be normal because of hormones. You can ask your dr and they might put you on something to regulate. I missed one shot of depo and my period came back and just...hasnt stopped. and its been almost a month.