I think there are a couple situations that should cause some concern for breeders but is all the more reason breeders have genetic guarantees and need to properly follow through with the guarantee "should" something, however low probability, happen.
One of them is this situation. I do believe that sperm retention can happen but is pretty unlikely. I would say that it's possible if eggs were not laid but if a female lays for you it's most likely impossible that she will retain sperm past that point. Basically if fertilization occurs you are golden for next year....if it doesn't there is a small probability that she might retain that sperm. (I'm sure Tracy B. or other more educated herpetologists could chime in here and confirm or deny this hypothesis)
The other situation that I had happen to me personally was parthogenesis.....in short the dam had a hatchling genetically identical to her. I bred a lemon pastel to an axanthic and got a single axanthic female. Repeated the same breeding again the following year thinking my pastel was actually a het and no axanthics. This got me thinking.....if you breed a homozygous recessive to a normal and the same thing happens you would never know? Even though it's super low probability....it can happen. This is where the breeder's guarantee comes in.
Hope that helps. I would go ahead and breed the axanthic het to her next year, especially if she lays. You have impeccable character Heather so I have know doubt any animal you sell will be backed genetically and an awesome animal to boot.
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