momnesia

noun

1. (colloquial, humorous, uncountable)Forgetfulness in a pregnant woman or mother.

   “It's difficult when we're young mothers—in the throes of momnesia, barely able to remember where we're supposed to be in two minutes (let alone two days)—to plan time for, much less seriously think about, our relationships.”

   “The mystery is that if our hippocampus, like that of mother rats, shows signs of new growth, why do we get momnesia? Why do we forget to pay the bills and return calls?”

   “Just chalk it up to “momnesia” and write things down when you really need to remember them.”