Opks... I hate them!

Chelsea🌞 • TTC our Rainbow Baby!
Has anyone used opks while ttc and still gotten pregnant without getting a positive? My lines fade in and out but never positive! It's driving me crazy. Is it easy to miss your surge if only testing once a day? Last night on cd12 I had pinkish/brown discharge for about 2 hours thinking I was Ovukation I still got a negative opk. 😕