Clarification Required

Had a phone call from my Sister. She is knitting a baby sweater but did not like the way it was working up in the yarn she had. There was some other yarn that worked to the same gauge but using a one size different needle and she was enquiring if she could do a straight substitution. Of course she could and once that was established we started talking about other matters.

When one of her great-grandsons was told of the marriage, his response was "Are they going to have any babies?" His mother didn't think so but let him call and ask directly.

Sister also didn't think so but she is knitting baby garments. Huh?