AirPod mic not working

My mic on my AirPods won’t work, I have reset my AirPods I only have my AirPods in my Bluetooth, I do not have an external app that uses Bluetooth, I have turned my Bluetooth on and off, but my sound works fine during a call I can hear the other person but they cannot hear me all they hear is a static sound! WHAT IS GOING ON PLS HELP