Hi,

I'm new to this site and the 'jargon' used so not sure exactly what okps means but I think you mean ovulation test right?

I have used them every cycle for quite a while. My 2nd line goes up and down colour wise all the time. Sometimes it gradually increases until ovulation, sometimes it is very faint and them WHAM it is positive. I guess the LH in your system fluctuate and it will also depend if you take the test at the same time every day and how concentrated your urine is. I always test at the same time of day (about 1pm) and drink minimal fluids for about 2hrs before hand.

I use the brand 'confirm' and have found that to be accurate.

If my 2nd line is really strong but only a little lighter than the control then sometimes I will test again about 6pm.

Hope that helps, good luck

Michelle