Why it's not OK to do space clearing while pregnant

I’m always glad when someone checks with me if it’s OK to do space clearing while pregnant because it definitely is not OK. And it’s not OK while breastfeeding either.Clutter clear is one of the preparatory steps for space clearing and it’s fine to do that while pregnant or breastfeeding. But it’s not OK to do the whole 21-step space clearing ceremony. This is clearly explained in my book, Creating Sacred Space with Feng Shui, but somehow some people miss this information when they read it, or