that's odd. the middle and lower parts of my plants ripen the quickest. if you want to let her go another week there's no harm.
edit: oh yeah don't you have side lighting? if so your plant's "tops" are all over. in general if a top has intense light it will keep growing until the plant has overstayed its welcome.
edit: oh yeah don't you have side lighting? if so your plant's "tops" are all over. in general if a top has intense light it will keep growing until the plant has overstayed its welcome.