At-home covid rapid tests?

My husband spiked a fever of 105 yesterday, and even with medication it has yet to dip below 101.4. Slight cough and headache, but no other symptoms.

I gave him an at-home rapid test. It appears negative. Should I trust it? If it’s negative, I doubt he would go to the doctor to retest because he is stubborn.

Edit: Unfortunately, it does appear it’s positive. Thanks guys! Just praying this passes quickly! ❤️