Probably not any thing WRONG with your girls, patients grasshopper. Two month veg from seed? Should be ready. But One week is not quite enough time to convince them yet that is time to bloom (maybe). I'll ask about light leakage, light leaking into box or room. Slowing of the nitrogen while feeding. And plants doubling in size while booming, especially at the beginning.
Let others talk about foil, and lights.