Isn't it possible to show HIV positive up to 6 months after birth? I would also insist on checking at your own hospital! I wish you the best of luck with whatever you decide. Dylan is such a gorgeous baby, I don't blame you for wanting to use the same eggs, his birth mother also sounds like a lovely person and I also would be inclined to trust her knowing how she has conducted herself so far. It may be a good idea to do an egg donation cycle using her first and if it doesn't work go the surrogacy route or even if you have any frozen embies from a donor cycle that doesn't work you could always transfer them to her.