Not flowering after 2 weeks?

I see pistils and looks like stretch is starting to happen. Plants take a bit of time to build up the hormones required to enter bloom and start the entire process. Also if the plant is to young it will not bloom till it hit maturity, this tends to be around week 4-6, Its why you can grow photoperiods on 12/12 from seed and they don't enter bloom as a sprout. Its almost like a autoflower at that point.

The photos aren't the best but you look to be in flower to me.

Einige Hybrid-Cannabissorten haben unterschiedliche genetische Dominanzen. Schlanke Blätter deuten oft auf einen Sativa-Einfluss hin. In diesem Fall könnte es helfen, den Lichtzyklus auf 11/13 zu reduzieren. Selbst dann kann es ab deinen bisherigen zwei Wochen noch eine weitere Woche dauern, bis die Blüte beginnt. Viel Erfolg – Geduld zahlt sich aus!

To me it looks like flowering has started. You have few burned leaves on top, think something wrong with micronutrients. Make sure plants get right feeding.