I thought I had plenty grandchildren with 7! The last three were born within 16 months of each other, so they had me pretty busy, too. But 17.....I don't think we'll see that many, but who knows? I'm just glad I don't have to keep up with you or your grands!
Those quilts sure are pretty. If they keep having children, you can try to keep up by not making them so pretty--use big chunks of fabric and don't worry about color. We called them utility quilts, remember? :-)