I only breed mine 2x a year MAX. Its hard on them. Their body needs time to heal. And their life span is shorter with breeding. However always have dirt in for her as she will lay eggs even if she is not bred cuz she will still lay eggs
She will most likely lay a retained clutch from the first matting. I would be willing to guess she will be laying again in about 6-7 weeks from the last time.
In theory, you could breed her again if she is willing two weeks after she lays and this will ensure that the next clutch which would have been retained will be just as fertile as the first clutch. However, it will be much harder on her if you go this route as she could then lay more retained clutches after the second clutch as well. I would shoot for 2-3 clutches a year to be safe.