Glow and CBFM

Rhee
First month using my clearblue fertility monitor with glow app but our 3rd cycle ttc baby no 1. As it's my first month also using my CBFM, I am currently on my 8th high fertility day...but glow says that my fertile period is over, been getting really bad heartburn for 2 days and felt really sick today that I threw up, got no appetite.