Help is this faulty?

I have two kids 5and 3

Husband had a vasectomy over two years ago (never got the follow up test)

Thought I had a regular period on Aug 4th

Period before that was July 9th

What are the chances that this is not true and is false

Idk why I tested but i just had an extra one and was feeling off so I tested in the middle of the night while my family sleeps for the heck of it. And I’m freaking out!

Test does not expire till Nov 2025