Keto question

RichSkerrett

I've been on this diet for the past three months and recently adopted the "cycle" way to refill my glycogen stores and have a chance to enjoy carbs once a week.
I've been tracking whether I'm in keto for this time with ketostix but never really showed many ketones if not traces.
So here's my question:
Just had a bit of a lazy day today, took my gf to work at 5:30am picked her up and took a nap. Only really ate 3 little chocolate crepes which ofc are full of carbs and a piece of 85% dark chocolate to make up for it!
Woke up after the nap and took a hot shower and decided to test my urine and the strip has gone the darkest I have ever seen it!
I'm confused though, all I've eaten today is sugar!!!