I can't say that I have seen that before and if your vet has looked at it and isn't worried then I would relax a little - you have done the best thing by having her checked out. You should perhaps just keep an eye on it from time to time. Have you mentioned it at all to your breeder? It is always an anxious time when you are due your first litter but try not to get too worried or your girl may pick up on your anxiety.

Hopefully a Bengal breeder may offer more advice.

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Kaz

For kittens, joy is for the asking and smiles are for the giving