Your chart still looks good... I wouldn't worry about it - you are only 12DPO... And you are still using the IC's right? Those things are notoriously inaccurate when you are early on... I barely got a line on 10DPO, 11DPO it was even fainter on my IC (but darker on my FRER, go figure) and finally on 12DPO my IC was strong enough to show up in a pic (the HCGs are the ones on the left there, of course):
Attachment 3071
And compared to my FRERs, they were no contest:
Attachment 3072
So don't give up hope yet!!! Just keep testing - maybe you'll get a better line tomorrow!

