Af was due yesterday. I just started having sore nipples yesterday morning and have been having (tmi) green stools. I took an opk this morning just because and it was pos. I also took an opk a couple days ago and it wasn't positive so its getting darker. All hpt tests up until yesterday have been bfn. I havet taken one today. I'm just convinced that if I was pregnant, I would have had a positive test by now. Anyone only get a pos after their missed period and how long after??