Based on when I think I O'd and my u.s. dating--
6 dpo- late p.m. sample- extremely faint silvery grey pinkish "Maybe???" that I had to tilt, squint, photoshop, tweak, and hold up to a light bulb. Equate +/- kind, but even the control line was faint. Not an evap, since it showed up within about 1 minute.
7 dpo - mid afternoon- Dollar store cheapie- an actual "OMG I think there's a faint pink line?" about 5 minutes after testing.
7 dpo - Midnight run to Walmart for digital. Bought a freaking 5 pack of Clearblue Easy Digital. Immediately (20 seconds?) got a digital BFP! (Of course, stuck with 4 unused tests now lol.)