It could be the forming of a mucus plug or it also could be a sign your period is coming. I would just wait to see if your period comes and if it still doesnt you could take a pregnancy test and you'd know for sure then since the levels of the hormone would would be higher, if it's still a negative I would talk to your doctor to see what they'd say.
Oh! It's not sticky like school glue or anything there's not much I checked or tried lol to reach my cervix and that's what came out.. White and creamy.. Not sticky to where I can go finger to finger if that makes sense
School glue type discharge up to when your supposed to have your period is known as a pregnancy idicator! I would say wait (as hard as it is) and take another test in a few days or get a blood test done! Best of luck-