for how many days can positive opk occur..

[piya]

i saw few people getting positive, for 3 and more days.. yesterday my testline was same color as control, but today it was of darker color then control... so for how many days more i need to check.. how long this lh surge last..

 

[AP]

They can go on for ages, it depends on the woman. Once you get your first - stop testing - everything after that is invalid.

 

[piya]

thanks a lot.. u saved me from big dilemma and wastage of money..

 

[AP]

Totally! I remember doing the same myself Addictive, lets face it.

 

[ttc1soon]

The surge can happen for days so I agree with that but from what I have read if you have multiple days of positives and one is darker than the rests to count that as the positive.