i would check every week until you know you have eggs. after that, you can take time off. if they are filling the brood area with nectar, you can rotate those frames toward the outside, but if they are just filling the tops, that's normal. they will store honey over the brood nest. make sure that there are no eggs and brood on frames that you rotate toward the outside. you do not want to break up the brood nest.
you should be able to see eggs or small larvae in another week or so.