so i need some advice .. this will be my 3rd cycle trying to get the hang of opks. last cycle my line never really got darker then the control line but im still not sure if im doing it right. i cant really test at the same time everyday, i try but i dont always work the same hours so its kinda hard so maybe i missed it. and now im not sure when to start testing .. my cycle was somewhat regular (28-30 days) but this past one was 48 days. soo any ideas when i should start testing?