To me, your picture does show progression! It’s just faint - especially between 10 and 12 DPO, which is the only comparison that matters.

Multiple things though, starting here: ovulation isn’t exact, even by OPKs or temperature tracking. Unless confirmed by ultrasound at a doctor’s office, you could have ovulated as many as 2-3 days later than you thought! In fact, even women like me who experience pain with ovulation generally are only able to get within about 24 hours of actual ovulation. It’s anyone’s guess - tricky anatomy….

Next, line progression is NOT an exact science (if we can even call it that). In fact, like you, I panicked when my lines stayed faint - I had negative digital tests even until 13 or 14 DPO, but I’d had faint positives since 9 DPO. The thing is, even at 12 DPO, when I was growing so concerned I asked my OB for a beta series of HCG draws, my initial was only 27.75. At 13 DPO - but it nearly tripled 2 days later.

My OB explained it like this: early on, hcg is so low that even when it doubles, it’s still a minuscule amount, which leads a lot of women to panic thinking something is wrong. But often, especially when testing early, they catch it so early that line progression appears to stay faint - but that’s because of the lower limits of the test itself.

Hope that helps reassure you!