I accidentally bred my brother

First time breeding with my adult cockerel and I now have 4 eggs in my incubator. I was running low on eggs and put a couple of my brothers sprague Dawley mice in the adult cage to be mixed with my white eggs, and it looks like they didn’t quite go low enough I guess. Seeing only 3 eggs, I was not excited, but it turns out the eggs are actually one of my sisters (Marble?) and my brothers, and it’s the one under the sprague dawley’s right now. I wonder if she’ll lay an egg anywhere close now that they’re in the same cage.