How long can a pregnant feminine ferret progress over her due date?

she has gone over now by 8 days and is still quite generous i don't think it's a phantom pregnancy. she doesn't seem distressed or uncomfortable and is still ingestion and drinking.It's her first litter. she is approx 18months old. Cheers.Michael
Answers:    Considering the rather short gestation for ferrets 8 days over is a big concordat. Distressed or not, it may be a good idea to check with the vet. Best warning I can give.
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