Did they start to flower?

Yes those are about 10-14 days in flower (from actual trigger day) Different genetics trigger at different times. This is not a straight across the board thing that all plants start flower at 12-12 but not at say 12.5-11.5 I’ve seen research from Utah state showing that most varieties trigger around the range of 10.5-12 hours of darkness. However, some trigger around 15/9 or 14/10.. I have one outdoor that is about 5 weeks in flower at this point, where as the others are just starting. Could have been where it was placed as well. Last year I had a few closer to the house and that blocked direct sunlight in the mornings which I believe was enough to trigger them early.

first white pistils mean pre-flower. The plant will still grow for 2 weeks.

High Phaleg, Yes she started to flower! You can see the pistils (white hairs) from female flowering already. They actually start flowering already when the nights take more then + 10 hours so 14 hours daylight. Beautiful plant! Happy Growing! 😋

Lesson time! I love to get intoghe grow science of things, so please excuse my enthusiasm. Plants have these things called phytochrome. What phytochrome does is let the plant know when the days are getting longer or shorter. So, basically, plants know their light schedule. Be it indoor or outdoor. Their phytochrome also tell the plant when it needs to flower. Some plants react and tart to flower when the days get longer, some plants start flowering when he days get shorter, and a few plants are what is called phyto-neutral. They start flowering based on time alive, not the sun cycles. Cannabis starts flowering once it's phytochrome sense a drop in sunlight. Now, to a swer your question: Yes, your plant started flowering. A lot of plants, when grown outside, start getting ready to flower the day after summer solstice (if you are in the northern hemisphere, fall solstice for the southern hemisphere). Your plant's phytochrome sensed that the days were getting shorter, so it wants to reproduce. Here are a bunch of links you can use if you would like to do some research: https://www.google.com/search?q=phytochroma+in+cannabis&oq=phytochroma+in+cannabis&aqs=chrome..69i57.12231j0j7&client=ms-android-americamovil-us-revc&sourceid=chrome-mobile&ie=UTF-8 I hope this helps!