I got my BFP at 12 DPO (CD 38-39??) I once thought I was preggo (that is how I found this forum), b/c I was 2 weeks late and kept getting negative HPT's (I was on CD 50, when AF Came.) Hope all works out for you.
i conceived sometime in april(ended in m/c) my cycle was due may 2nd, i took hpt on april 21st and it was BFP second line was faint, but as the days went by it got darker(that was with the $tree hpt). Now im in the 2ww, 6dpo and cant get a BFP, not sure if im preggo or not, dont feel preggo so mayb im not.
Its good your getting the blood test so that the dr can go from there to determine why your cylce hasnt came yet. Keep us posted.
Okay my last period was Dec 7, 2007 and I felt, had a feeling I was pregnant around Christmas I took a hpt on Jan 7, 2008. Just one test unlike everyone else on these boards and got my BFP.