Husband Freaked!

Dana
I just want to know if this is normal. I showed my husband the size of a newborn diaper and mentioned how this was the size newborn then I mentioned how this was the size we want our little one to be at birth (I'm tiny and my family has a history of tiny babies 5-6 pounds). I mentioned something about how it could be a primie (family history of primies due to low fluid) he completely freaked out! Like wouldn't let me talk, I tried explaining myself and he told no, stop talking... I've never seen him freak out about anything that much. I'm just wondering if anyone else's hubby does the same?