Longer than usual cycles?

Maylet
Hi everyone, so I have roughly 40-44 day cycles when I am not on birth control. Right now, I do not want kids so I am on the pill. 
However, I heard that it's harder to get pregnant when you don't have a normal 28-30 day cycle.. Can anyone else relate to me? I wouldn't call my periods irregular but, I do not get them every month...
What do u guys think? 
Just wondering for when it's time..