Harry felt bad for laughing, he really did, but the image she'd made when she came in was amusing. It really was. "No, I'm not laughing about that, honestly." he responded, getting a hold of his amusement and banishing it for the time being. "It was just that I was thinking about the whole baby issue when you stormed in here."
It hadn't been the baby issue that made him laugh. That normally made his heart speed up and his breath quicken until he felt like he needed a paper bag. "And with your hands on your hips like that it looked like you were scolding me ... which was funny .... because it was motherly and the whole baby thing..." he suddenly came to the realization that he was digging himself a bigger whole with each word he spoke.