Trying to conceive #2

Destinee
I had my son nov. Of 2011 and jan of 2012 I had the iud birth control inserted, I had it for about a year and I got it removed and got the depo shot immediately but I received the shot from jan through July I believe...I'm having a hard time conceiving...could anyone tell me if they've had this problem and if you did get pregnant how long did it take...?