This is maybe three months. I had two others show they were male. At the first of the month. They are ak47 my buddy sent. He said he don't mess with autos and his are fine. Wtf?
Im sure its a photo,It's probably just getting ready to flower. It's that time of the year, days are getting shorter and the plants sense this. If it was a 3 month old auto it would probably be halfway through flowering already.