Do OPKs get darker the closer to o? (m)

Avatar for schmoopybadoopy
iVillage Member
Registered: 03-27-2003
Do OPKs get darker the closer to o? (m)
Mon, 04-07-2003 - 3:35pm
I'm CD9, used an OPK yesterday at 3 pm after holding urine for 3 hours, and the test line was there but very light. Tested again today at 3 pm after holding for 2 1/2 hours, and test line was much darker than yesterday, but still a little lighter than control. I am definitely going to BD tonight, but I am wondering if this means I will o sooner rather than later??? Or does the line NOT necessarily get darker the closer I get to o?




Avatar for umothra
iVillage Member
Registered: 03-26-2003
Mon, 04-07-2003 - 3:43pm
they do get darker as you go along. Some books suggest taking a test in the morning and a test in the evening because your body just builds until you finally O.

When you finally get a test where the lines are the same or the test is darker you will ovulate within 36 hours.

I actually plan on doing 2 a day to start and when the line becomes visible I will move to 3 a day because my schedule is WAY off after I did an egg donation cycle. I bought my tests in bulk online.


-Lisa and Tavian 1/15/04
Frittata edd 6/4/05
iVillage Member
Registered: 03-27-2003
Mon, 04-07-2003 - 7:43pm
It varies for different people. I know that for some women they do get gradually darker, which is a nice, earlier heads-up that O is coming. For me, though, they totally fluctuated. It could be darker one day and then lighter the next until I was actually getting ready to O. For me, I always got one almost as dark as the control line the day before O, and a clearly positive one the day of O. So your close to positive result could be a good sign, but it's hard to say without knowing what's normal for you.