no discharge for 3 days and worried as hell

so my period are supposed to come in two days but for about 3 days i barely had any white or clear discharge and im worried i could be pregnant or something more serious. i would only get a littttle bit of discharge when i collect with my finger. I usually get some white discharge the days before my period and I'm really worried. im not on BC but i took the morning pill last month so idk if my cycle changed cause of it, and ive never missed a period.has this happened to any of you? 😓 PLEASE HELP A SISTER OUT