I don't personally have experience with a downs child, but a close friend of mine just had her beautiful daughter, Lillyanna... Whose got down syndrome...
She's the most precious thing in this world... I feel so lucky for them.. As each milestone gets to be a big one!!! and they get to experience so many wonderful things that most other parents don't... not only that they get to develop a different sort of appreciation for life... that itself is what i long for...
Down syndrome i don't believe will change a thing.. certain things may be harder.. more dr. visits but still a gorgeous child who you get to lovvvveee with all your heart endlessly and unconditionally and a love you will forever recieve in return.
I'm very happy for you, and very happy that you don't think it's wrong he's got ds. It's not.
Congratulations! Hope your scan goes well!
xxx