I was in exactly the same situation, but the no hammering, or being around renovation works warning came from my in laws. First things first, my father in law is a fung shui expert and he said moving was fine (not ideal but ok) but I cannot be present whilst renovation works were taking place and I could not be there when they were doing the actual moving in. So I think you can tell your parents that, it's not a blind "stay put and not move" rule.
I am chinese but was not brought up on such beliefs and think it's complete rubbish. Like you, my husband luckily does not believe it either, despite being brought up on it. So I simply obediently told my inlaws that I would not be present whilst renovations were taking place, but I went to check when I needed to and of course, never told them about it and when asked, blatantly lied. Afterall, my husband was not going to take holiday just to oversee curtain rails being put up. That way my inlaws had peace of mind and I still got things done. I also told my helper not to tell my inlaws, just in case they asked her.
To ease your mind, my daughter has no deformities whatsoever, in fact, she was carried full term, walked at 8 months, talked early, toilet trained at 17 months and just started ice skating at 2 years 3 months. Hope that helps