...If you see pistils, then it is budding... buds are just a bunch of female flowers- which consist of a calyx and two pistils- basically growing on top of eachother. you're only three days into flowering... There is PLENTY more flowering to be done. The plant will keep producing flowers right up until harvest, so no worries.

I also wanted to say you're lucky you're seeing pistils everywhere... I've had mine on 12/12 for four days now and there's nothing but bare stem still... I'm gonna give it a few more days before i start to worry though.