Not an Autoflower

Hi mate is at all possible the seed got mixed up? I haven't heard of autos vegging that long as that would defeat thier purpose. Switching to 12/12 will not make an autoflower flower it will flower when its ready but if indeed you have been given a wrong seed that is a photoperiod strain switching to 12/12 will make it flower and thus solve your question. Hope this helps 😀

I can't really tell from the photos if your plant is a Hermie. The only thing you can do at this point is just keep growing her way past harvest to see if she will Hermie. But you are better off taking that pollen and pollinating another clone that has just entered flower. She might not be in good enough health to produce good seeds that late in her cycle. Colloidal silver is a good option to force pollen but it has to be started at the first sign of flower.