That’s what you get when you talk about your thoughts at the standup-meeting čśë
But seriously – everybody knows that pregnancy takes a bit longer than nine month – so it needs at least ten woman to deliver a baby in one month. Also parallelisation always comes with some overhead – letz say 10% and let also add some buffer for unforeseen problems – maybe 20%. So a realistic projection could be 1,3 month for finishing a new baby with a team of ten women. ;).