Geese normally lay every other day have you been taking her eggs or leaving them? does she seem to be walking any different like she maybe pushing or having trouble? Water fowl can get egg bound hopefully that isn't the problem do you have any calcium around the house even human you could crush up a pill and put it into her water close to where she is laying and see if she'll drink it some use calcium citrate or calcium gluconate to give some extra calcium I think even coral calcium would be fine depending on what you have. If you can keep her separate so you can monitor her egg laying that would help to rule out egg binding. I'd check her vent out to make sure there isn't any discharge to. They can get infection and we'd be the last to know before it's too late. Don't want to alarm you just trying to rule ot the worst.
- Plum Nearly Farm