Afraid to announce to in laws

I’m currently pregnant with baby #2. My first born is 2 years old. I feel as if I was to announce to them that we are expecting, they are gonna say something like “ you guys aren’t ready”. They’ve been bugging us to have another but at the same time they’re bi-polar and say things that is not meant to say. A few months ago, my MIL say to my husband that we shouldn’t have anymore kids, that was with anger. Now, I’m thinking about all the things they’re gonna say to us. What can I do to make myself feel at ease? I’m so worried to the point where I don’t want to say I’m pregnant. Btw we live with them.