Absolutely not pregnant. Why would that matter?
I'm sorry, I wasn't trying to be intrusive :C
In my experience, pregnancy can sometimes cause a person to smell differently to a dog. And I just thought that if this was the case, maybe the dog saw her as a 'stranger' and reacted this way. I've seen dogs behave strangely to an owner who has recently become pregnant.
I didn't mean to offend you.
I'm sorry you and your wife went through this and I hope your wife recovers quickly...you are in our prayers.