I would wait a week..I feel energy spent flowering would be needed and have to be generated by at least a little larger root system..altho I've never gone straight into flower from seed..I did with a clone once,but it was an extra in the cloner and I didn't wanna waste a healthy clone,worked out well,but only got 3 or 4 grams in the end..I really didn't pay good attention to the little girl.