Cervix check goo?? Im embarassed. Plz help TMI

Whenever i get my cervix checked, i notice that the doctors glove has clumps of wet thick stuff all over it. As if i had a yeast infection or something (even tho it doesnt look exactly like a yeast infection)

When i have sex its normal and theres never any white stuff or any stuff at all or even when i check myself with my finger or anything. Im confused and a bit embarrassed. Does anyone know what this is??

I dont have a yeast infection and im assuming that if i did, the nurse would tell me.