Vaginal Discharge, wetness

Hi Ladies
I'm 30 years old and I'm ttc my 3rd baby, my AF isn't due to come until 2/28 but this morning I woke up thinking I started to only find white, sticky discharge, sorry tmi.
This is our 2nd month trying and I'm really getting discouraged, I tested this morning to only get a bfn
Glow is telling me I should start AF on the 22nd but all my other apps tell me the 28th, I've been feeling very wet, moist and I've been having to pee a lot lately. I'm not trying to think about it as much, I really don't want to get my hopes up, I really want to get pregnant but does this sound like I'm about to start my period soon?