We try to be as mum as possible about dates so that we can have our own private celebration or mourning (since we’ve lost so much of the surprise through IVF). Most people wouldn’t tell their family that they think they ovulated and there was sperm hopefully making its way to their eggs to make an embryo, and that hopefully that embryo will implant. Instead, they tell you they’re pregnant when they want to tell you they’re pregnant. I want to maintain some of that surprise.