FWIW, I got a negative FRER at 13 dpo, and a positive at 14 dpo with DD, but it was still a light line. The darkness or lightness of the second line means nothing, only that it's there. I don't know what progesterone levels are supposed to be, although I would think your doc would be pro-active if yours were too low, from what you've said.
Hey Karen Lynn,
I'm a little concerned about that progesterone number too.
Mom to Talia (3)
expecting #2 on 1/11/11