When did you get your bfp

So my lmp was 2/19/16 I just had an ultrasound yesterday which determined I was only 5 weeks and 2 days not 6 +1... Meaning now I'm due dec 1st and I basically got my bfp March 18th which according to the dr was at 3 wks +1... Or 7dpo :) so far they see the only sac which is normal at this time and my husband joked saying he has super sperm for me to test positive soooo early lmao:)