@jitters since they are autoflowering you have to just let them do their thing, they are programmed to do so. I’m not sure how much you can manipulate their flowering switch - if at all. My Blueberry auto has been at 12/12 and she still seems to be on the same pace as average flowering time to harvest. One of your plants is preflowering from the looks of it and the others have that light swirly tops starting to form so congrats, you are on your way!
It’s also my understanding that autos don’t tolerate much pruning - although I have done it to mine in the past because I couldn’t control humidity at the time.
I think Hogmaster nailed it, just let them grow. ️
They are really cute plants! One of my first plants was a WW auto and although she only got 12" tall she produced a lot of great weed!