Late period help.

I really need some help and/or advice. My period has always changed from the beginning of the month to the end of the month. And sometimes I have to correct Glow because they are some times 2-3 days off. But this time I'm 5 days late. My last period was October 1st-5th. Glow told me my next period was October 29th-3rd. But I still haven't started. I am having some white creamy discharge. I just don't understand. I went to the doctor today and my text came back negative.

Edit: I took another test today and it was a negative. I am 6 days late today.