"Well, love, there's only one way to find out. Tell them and you'll know. Otherwise you keep worrying and have to tell them eventually anyway. And thus will still find out, just with a lot of added worry in between." It was easy and simple. Why would anyone prefer unnecessary worry when they would have to do it eventually anyway?
“Laura is pregnant too, so I think you two would get along. If you want to meet her…” Sirius suggested. Dom and Laura were so different in many things but he doubted that they would not like each other. And maybe Laura could lift some of Dom's doubts.