Confused! Please Read!

Hello All! So I’m not expecting AF until the 26th but I decided to test early with FRER on the 19th and got a vvvf line and on the 20th I got a faint line but was darker than the previous day. For reference this would put me at 8 and 9 dpo. I decided to make an appointment today (11dpo/ 4 days before AF) at the Dr’s to get a Dr’s note because my 26th birthday is days away and I won’t have insurance coverage. But the nurse told me that this is a Negative result so she refused to give me a note. I’m so frustrated and confused now. I know it’s still early but I was under the assumption that a positive is a positive.

Edit: She said that the threshold for a positive in her eyes was a test line as dark as the control