Little help please ladies

Kerrilee • Im a mum to 2 beautiful children my daughter who is 6 and my son who is 4 in august. i was born in London but have lived in bristol for 7 years .
So Glow said that Saturday I was at 32% more chance of getting pregnant so we had sex Saturday as we are doing it every other day. But today it says 7.2% chance of getting pregnant but I've just noticed I have the stringing egg white kind if discharge. It's our night to DTD anyway but could this mean that the Saturday % was wrong and it's higher today? Thank you