TTC after Birth Control

Hey everyone. I got one shot of depo prevara that is supposed to be 'wearing off' this month. I have only had one shot of it this time around. The first time I was on it I was on it for several years and it took 7 months to concieve. My period has stayed on track these past three months, so I was wondering if I had a better chance of TTC sooner? Does anyone have experience TTC after one shot? How long did it take you? This would be our third and final little baby.