TTC for 1 year now

My boyfriend and I have been TTC for 1 year now! This will be baby number 3 for me and baby number one for him! I was on bc (depo provea) for 4 1/2 years. Got off it last year in dec! Been having a regular cycle since Feb. I went to the doc blood work and levels are fine , in fact, the doc says I am ovulating every month! I used clear blue kit and apps to track fertility but I guess im off or either not our time yet! It gets depressing because I didn't have trouble with my first to but only we can keep trying!