It looks as if they saw a ghost
A woman knows her body. If it is not the bloating, the missed period, nausea, or the dizziness, then it is her intuition telling her what she already imagined: she is pregnant. Although she has already gone through this process, she is intrigued by her husband’s reaction upon hearing the news.
His reaction was the same as when he found out, years ago, that they were going to have their first child. His mouth dropped and his eyes bulged out as if he doesn’t believe what he was seeing or as if he wished it was a joke. It could be a joke, but it’s not. Maybe next time.