I think I have a rainbow

I had a chemical in January. I started tracking ovulation. This past Saturday I got a very faint line on my first response. I was 9 dpo.

I stressed the rest of the weekend over hcg strips and just couldn't tell if the line was getting darker. Today I finally got a new box of first response. And here is the result. Today is 12 dpo.

This line was visible within 30 seconds of the the test. My line never got this strong in January. I am hopeful and feeling more confident about it.