Is this another chemical? 😭

Lilly

So I'm 14 dpo today (I think! Possibly one day out) and yesterday I was getting vvvfl with non fmu on internet cheapies and a tesco own, so this morning I used clear blue thinking it's bound to be more clear using fmu and a better brand. Couldn't get a pink dye 😑

But I'm soooo confused the lines are soooo faint! Is this another chemical or is it possible that it's taking a while for the levels to rise?

These where from yesterday

Lines are so faint, it's hard to tell if there getting lighter?