Husband asking when I’m due.

We’re having our second son, and I feel like every month my husband asks me when I’m due. I mean, the due date never changed! It just annoys me so much that he can be so blissfully unaware. 😩😂 And every time I tell him, his eyes get really big and he makes some comment about how close we’re getting. Like can’t you write it in a note somewhere and not have to ask anymore?! Some men...lol