tweetie - for my case, my hb SA results was very good.. so it was only my problem.. maybe tt was y.. but i think we sld always stay postiive and not be overly stressed.. i was very very stressed up and i think it affected.. then i decided to take things easy and struck tt mth.. for me, i used e clearblue OPK for a week in a row.. (darnd exp) and got smiley face (which indicated +ve) for e whole week! haha.. tt made me realise it was probably my PCOS.. since urs changed to a very dark line, maybe u are gg to O soon?! just BD and hope for e best!! =)