Is this a positive?

Olivia • TTC #1 with PCOS
We've been trying to conceive and this is our first month using metaformin and Femara. The first picture shows right when I poas and the last is about an hour later. The line seems to be getting lighter. Also I'm testing early. Can anyone tell me if you can be pregnant but the line fades? Idk what to think. My DH saw it right away but now it's getting lighter