What are you gonna do with a third kid?

I can’t help but to feel upset over this question. I already have two children and now I am expecting my third as of now. My FIL asked me this question just now and I feel kind of criticized regarding my choice of how many children I want and I kind of got a little upset. I don’t know if I am feeling this way because of my hormones or not. However, I feel like most people are rather shocked and almost upset with my decision now.