thank you , If I'm correct the visa should be valid for 6 months usually ? if everything goes well, the expiration should be some time near July of next year and she is due late February, this immigration process has been the main stress to my wife and I waiting for almost 2 years, times that I'm unable to be with her while she's in HK and I'm in the US, I would discuss it with my wife first but I think we would want to get it over with, we were thinking that she could fly over first after some rest and giving birth, the baby would be staying my wife's family for a week or 2 until she can get her green card in the U.S and then fly back to Hong Kong while we are waiting for the CRBA process