Something you should keep in mind is that a man is also affected if he has a child. Available time, sleep quality, stress levels are all disrupted, and it affects our cognitive abilities to extreme degrees often times. So just be sure to discriminate against men who plan to have kids to some reasonable factor as you do women.

It's obviously not the same. A man does not physically get pregnant.

What about the years (not weeks or even months) after pregnancy? Toddlers aren't hands-off.

But I got just as little sleep, if not less, than my wife did, because I was the one getting up and changing my baby in the middle of the night. Please don't generalize.

Did you read the article? It's about extensive bias in optimistic vs pessimistic questions and has nothing to do with pregnancy or 'gendered' issues.