Pregnant after depo

I gave birth about 4 months ago to my baby girl. I decided to do depo immediately after birth. On 12/23 I was due for another depo shot but didn't take it because I was constantly bleeding. As of 1/14/2017...I finally stopped bleeding after 4 months of bleeding continuously. 1/15 I had sex and he came inside of me. Still haven't bled since. But just wanted to know what my chances of getting pregnant are?