I must admit that I feel the same as Shades. As someone who is still breastfeeding a toddler over 2 as well as a baby, I guess I just can't imagine wanting to wean one of my children if I were still wanting to maintain a milk supply for another person. I've been a milk donor a few times and I've thought about further into the future and possibly maintaining a supply after my babies have self-weaned in order to continue to donate, but for me personally I am happy to keep breastfeeding my children as long as they want to. I'm not judging the original poster though, it's her child and her body so it's her choice completely.

The best way to maintain the supply though would be to continue to breastfeed your 14 month old though, so perhaps that's something you might re-consider, both for your child and for you husband?