Yes, it is possible. I don't pair them that low, but I know of instances where there were even healthy eggs laid with a female of that size.

I personally have not had a case of retained sperm in my collection . If I am going to have one it will probably be this year with an old normal that has been paired with just about every male in my collection over the past three years and produced nothing. She just dropped 11 healthy eggs. This season's pairing was to a super fire so it should be pretty easy to tell if I have a case of retained sperm.