Grandparent in law passed on

Hi I need some advice. I'm currently 13 weeks pregnant but have not inform any of my family members. My husband grandparent passed on today and I'm understand for taoist ritual some parts of it are not suitable for pregnant woman. I happened to be at home during the part where they did the first part of ritual and the person performing the ritual asked if there's anyone pregnant. My husb just told me and I'm kinda stress out because I don't intend to announce my first pregnancy in this manner and im afraid by keeping quiet I'm proceeding with something that's not good for the baby. Any advice please?