VVFL then negative? Help Plz Lol

First pic was last night second clear blue was from earlier both within time frame. Just curious why the pink had what looks like a VVFL and the clear blue looks negative? Both taken within the time frame anyone had this happen before? And should I keep testing or what does this mean? Period is due September 7th or so I’ve just never had this happen. Usually it gets darker in the past when I’ve been pregnant.