Late period

Advise please!!!

My period is already late by two days and after today it will be 3 days I’ve had no pain or cramps to tell me that my period is coming but the week befor I had a very sharp pain on my right side of my belly the week befor and I couldn’t sit down now that I’ve noticed that my period is nearly 3 days late I’ve stared having more of a wet feeling discharge and near to nothing of the normal white discharge!!

What is your thoughts about this??