I am due to get the deposhot in about a week or two, but my husband and I decided that we want to try for another baby. How long does it usually take for the depo to ware off so that I can become pregnant?

Hi, I was taking the depo shot, but been off it for about 2 years now I haven't yet had a real regular period just light spotting on and off. My husband and I are trying to have a baby, I would like to know what's going on with me or how I can make my chances better.