[Clare]

According to FF i o'd on Friday, my darkest OPK line was on Saturday. I didnt think it was positive as it wasnt as dark as the control line. I have noticed this over the last few months. Is it possible that my body just dont get a very obvious positive result?

If FF is right then we got our BDing perfectly timed for the first time ever!!!!!

[Mrs. Hope]

Yes, I think it is possible not to have very dark OPKs test lines and still O. When testing you might have missed your surge (middle of the night, different time of day, etc.). I've never gotton a strong OPK test line, but I still O according to my CM and bloodwork. Hope you have some good news soon!