Have you tested anymore? How many DPO are you?
I tested at 9 DPO and got a faint faint line, then again 10 DPO and another faint faint line, then 11 DPO and a negative. I can't bring myself to test anymore. I am now 15 DPO and AF was due yesterday but hasn't shown up. My husband asked me to stop spending so much $$$ on tests so we agreed I'll wait until Sunday before I retest.
I hope that this is your BFP - so exciting!!!