She's looking a lot like my Bruce Banner did in Week 7 - and I, too, was very worried she wasn't going to flower... I was used to "normal" shows of pre-flower and much earlier but she was different. I think yours are different, too. I worry that if you take the advice of those telling you to "flip" her to 12/12 that you'll never see a good harvest with these ladies ... autos (and I DO think they're autos) will grow under 12/12 but not very well.
I'm seeing attributes of her that are exactly what I saw in my grow... Give her another week and I think she'll just pop into flower which sounds weird but that's what my grow did.. and very late! Take a look at my diary and the pictures - you'll see they look very similar and my concerns were exactly what you are concerned about...
growdiaries.com/diaries/152783-grow-journal-by-growinggrannie/week/854635
Good luck... autoflowers have their own schedule and although there are "normal" times for doing things, there are SOME ladies that throw those norms out the window... I think you're fine!