Who did you tell in the beginning?

I just found out that I’m pregnant and I don’t want to announce it to everyone just yet. I was thinking about telling immediate family members like my mom his mom his grandparents and his dad and maybe my sister. I do work with coworkers that I am close with and I’m not even sure if I want to tell them yet either but I feel as if they will catch on. Who did you guys tell until you were ready to announce?