Well its not just in Asian culture. If your friends know that you have your own place they should basically know that the next best gift is money. You really should not have to ask or register for things that you dont need.
I am in the same boat. My best friend backed out the last minute saying that she doesnt have a sitter. But she seems to find one when she goes other places. I say go without her and enjoy your new husband. You'll make the right decision in the end.