I am 24 years old and I was on the depo shot for 4 years and have been off for about 4 years. I always have had irregular cycles since the shot, and haven't been on anything since but I can't get pregnant for some reason and I would like to know if its because of me and my cycle?

It could be it is hard to prdict ovulation when you are irregular, but it could also be a result of the shot. Have you gone to a doctor for a physical lately? I would also suggest talking to them about your fertility options. Good luck.