it is very subjective based on the game. for some reason, if a sister is involved, absolutely. if it is like a married neighbor or friend, most likely. some rando probably not
Yup it's a streak of completionism
The game I was most thorough in was
Love & Sex: Second Base by Andrealphus
Every female in the game was pregnant when I finally finished with the full home harem wedding
Though I find games with pregnancy that don't have a lactation feature disappointing
If I can't drink the milk of the one I knocked up then why bother I'll still play it and knock them up but I'll be doing a lotta skipping