I understand your worry, maybe you can try my doctor he is quite famous, lots of Japanese & Westerner visit him.
His clinic base in Central (Tak Shing House), Dr Chan Sai Lock, Patrick. He also got 4D machine, he is really nice and explain all stuff in details. Only need 4-5 days for the Oscar & blood test, around $1900. You can try to call and make appointment 2522 2500. Hope all should be fine. Cheer up don't give up!!