Depo Advice..

Brianna • Momma to a beautiful little girl and baby boy❤
I've been off the Depo shot since July of 2014. My periods started getting regular February of 2015, it's just disappointing to be 14 months past Depo, 8 months of normal periods and still not being able to get pregnant. My husband and I are 21 and 22, healthy, not over weight and we don't smoke or drink. I take opks, but I haven't started tracking bbt, I plan to start with my next cycle. Any advice? How long did it take you to become pregnant, after or never on Depo?