Gag Reflexes

Okay this is really random... But along with other very random subtle signs.. I have had really intense gag reflexes when brushing my teeth to the point where I almost vomit for the last few days. Usually when I brush my teeth I can brush my tongue and not gag at all and now I can't even BARELY touch my tongue with my toothbrush and I gag. Could this be an early pregnancy sign? Trying to wait for AF to come before testing.. Supposed to start tomorrow according to the app. Any advice/experience stories would be appreciated!!