Pretty much had issues with any of this sticks. But ordered the dip ones cus I cud get 50 for 10 bucks. I knw I'm proly just being impatient but I'm in my predicted fertile window. And they all look the same one dark line and one faint. Can't tell if they r getting darker as I go or not. Should I check more often? My cycle is iregular so I don't knw if ovulation is really coming or not