Based on current week, you are at least 7-10 days into flower phase. You've got tufts of pistils on terminal nodes.
you probably have 3-4 more weeks of vege growth remaining as it continues to transition. This can vary quite a bit based on plant.
autoflowers are not aliens. they act the same way as photoperiods do except for the trigger to bloom. they want the same ratio of nutes, too. the whole perception that they are different in many ways is nonsense. it's just marijuana plant.
Here's what is odd. This plant took a long time to enter flower phase. did you change light schedule or still on a long day / short night cycle? if you changed the cycle, stick with the long night.. if not, no worries.
few autos take that long to switch over to flower. some are bred for this trait, because it does improve potential yield. if you had to change light schedule to move things along, it's a photoperiod and the breeder fucked up somehow. if not, it's just an XL auto with a long vege period.