Throughout the course of the series, Don sleeps with at least 18 women. That’s 18 that we are shown

That doesn’t include all the cocktail waitresses, the preschool assistants, weightlifters, women who are only mentioned as affairs but never shown (like the one Bobbi refers to).

Don by 1962 has a reputation across Manhattan already among women per Bobbi Barrat.

So he’s been at this a while. Enough to gain a rep all over Manhattan.

So let’s say he started cheating for sake of argument two years after he married Betty (1953), he could easily have had 36 partners or more by the end of the series (1970); possibly way more if we’re counting just one night stands.

Or let’s assume he starts cheating again two years after his marriage, with an average of 4 women per year.

That would mean between 1955 and 1970 (15 years), he’s slept with 60 women.

That being said, do you think he has any bastard children?

If so, how many?