Average pregnancy is 9 months long.

"Limited divisibility of tasks. Adding more people to a highly divisible task such as reaping a field by hand decreases the overall task duration (up to the point where additional workers get in each others way). Some tasks are less divisible; Brooks points out that while it takes one woman nine months to make one baby, "nine women can't make a baby in one month"."

https://en.wikipedia.org/wiki/Brooks%E2%80%99_law

Average pregnancy may be 9 months long, but that's not even the right metric: the cycle time from one successful birth to the next is longer than that.

Out of every nine women, less than 9 are able to have children once age and various conditions, medical history, choices etc come into play. I think I was over thinking the scenario...

1 woman can make 1 baby in 9 months, so 9 women can make 1 baby in 1 month.

My wife recently made two babies in 33 weeks. That's less than half the average time per baby! Granted, they spent a combined total of 62 days in the NICU, but even accounting for that, we're still ahead, I think.

Congrats! A premature baby in NICU might appear even cuter to many on the internet. The game and app reviewing public is less charitable to premature software, however.

62 days -> 9 weeks

42 weeks overall

4.33 weeks in a month

42 weeks -> just shy of 10 months

I'm not so sure if you are ahead on weeks. But you are ahead on kids! Congratulations and good luck

You can only double count the babies' NICU time if you're looking at the average baby per week. We averaged 0.048 babies per week, as opposed to the baseline 0.025 babies per week.

Well full-term is often given as actually being 37-42 weeks, with the due date estimate being 40 weeks (not 9 months), making 42 weeks a normal(ish) pregnancy duration.

Not that I want to derail the well-wishing!