It takes quite awhile for depo to clear itself of your system. It can take many many months for it to stop really working. It is very normal to have the irregular bleeding and whatnot after stoppig it. December really wasn't all that long ago, give it a little more time hun! Good luck. Also have you been trying to concieve during your specific ovulation days? Or are you just kind of winging it? Maybe if it is timed at the right time of month (which may be hard with the way your periods are) maybe you will have a bit more success.

Jaydens is right. Depo takes months to get out your system. Some women take 18 months to fully get back on track.

If you end up going on another form of birth control, make sure that your doctor talks to you about all of the side effects before starting it so that you know exactly what to expect next time. If you doctor rushes you in and out, don't be afraid to look for another who will take the time to talk about the side effects with you.