depo injection and wanting to ttc

I had my first depo shot on 23rd May but we want to try fora baby when the depo runs out in July I know it can be a while until you fet normal cycles and fertility again can my cycles an fertility take a while to return if I only gad one jab because I know it takes longer to return the longer you've been on the injection and does anyone know the average tome it takes to get normal cycles and fertility and how long on average it takes to voncieve after you stop the depo shot please