John wasn't surprised when Verity suddenly went into labor. With the multiple births and the events of the day, he would have been more surprised if she hadn't. However, he truly didn't like women when they were like this, and of course, very few rich pureblood didn't react like that. This is why he liked down to earth families.
"I should tell you that Draco came up with a potion for Tracy to make labour painless. I don't like potions as a rule. Women have been doing this since the world started without magic," he said calmly, "however, it is an option."