OPK time of day help

posted 3 years ago in TTC
Post # 2
3360 posts
Sugar bee
  • Wedding: December 2011

I’ve also read not to use FMU, actually because it is more concentrated – you have some level of LH in your urine for awhile before ovulation, but you get a positive when it reaches a high enough level (your LH surge).  If your urine is super concentrated, it can give you a false positive.

Post # 3
6158 posts
Bee Keeper
  • Wedding: October 2013

I used the wondfos for first time this cycle. They said to use any urine. I tested at 10a/10p. I was away the weekend I got my first positive and I could test on my regular schedule. I got a very close positive at 4pm then the next morning at 7am a clear positive. I took that as the right one.

Since it sounds like you take your temp, I would go by that instead of the opks. Maybe try a different brand next time.

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