Bcn critical xxl auto fem

Need help with this one these av been in 11 weeks now with 18/6 light and no sign of buds at all ( got my dates mixed up ) any one tell me how long these have left

Did they ever start flowering? ?

Sometimes it turns out to be a photoperiod even though it was labeled autoflower. I have read about people having this happen. They will treat it like a photo period plant and change the lighting to 12/12 and it induces flowering.

I would look up the regular or feminized strain details and timelines to figure out how long it takes to finish up. Then I would check the trichomes for readiness before harvesting.
Good luck