How to Get Pregnant With Natural Cycles

The setting that i put down is that i don't want to get pregnant right now so when it thinks i'm ovulating i have red days and then when i am not ovulating and my chances of getting pregnant are very low to nearly impossible it's green. The natural cycles app will tell me if i've read day or a green day because my cycles are very irregular the thing that's like a shot in the dark is the ovulation that is really what has been throwing off my cycles. temperature is not the most reliable source for me but it's very empowering to know my trends in temperature. Other way that i naturally track is i use lh which is tracked from a p test