Depo provera and trying for baby

I recently miscarried and stupidly thought I wanted to avoid pregnancy for a while so took a depo provera shot and now I want nothing more than to get pregnant and I feel sooo stupid!! This is all days fresh by the way all happened within the past week and is the first time I've taken a long term contraceptive. Does anyone have any advice for getting pregnant once this has worn off? As in how to prep myself for pregnancy once the contraception is out of my system? I believe it takes 12 weeks and I will not at this stage be going for a top up.