I did a HPT 2 days prior to my bt on 11dpo and it came back negative, and it was +ve at BT. Though I'd had 7 unsuccessful cycles prior to that so believed the HPT at the time, and turns out it was wrong that time. I also know of a couple of members who got a -ve hpt on the day they got +ve BTs.

I was the POAS queen back when I was doing IVF, but I never saw a +ve hpt until AFTER I already found out I was pg from a BT.

So no I don't think a -ve hpt means you're out of the running yet.