If you're going to flower in a week, then don't top. She needs a little time to heal afterwards.
- You could easily top now tho. they're plenty big for it.
Tho, to be honest, this is your first grow, so I'd recommend you don't top, get the experience first, and give it a go topping next time.
- But as I wrote, they're big enough if you want to do it. Just give it a few extra weeks before setting to flower.