Cervical Fluid Before Period Day Before Expected Period...?

Day before expected period...? - cervical fluid before period

Today is the day of waiting before my time, and I will be a large number of cervical cancer (protein) have mucus every panty liner .. (not a pad, but my pants). Is this normal? I have all the symptoms of pregnancy nausea, dark areolas and .. cool I've ever seen a panty full of .. Discharge is a symptom of pregnancy?