dlsite.com/maniax/work/=/product_id/RJ036920.html

I particularly like this progression image--

img.dlsite.jp/modpub/images2/work/doujin/RJ037000/RJ036920_img_smp3.jpg

Pregnancy, growth, pregnancy, birth, pregnancy.

The girl becomes pregnant, gives birth at school (with the help of the father, who is incarcerated for many years (until later, when he can return) because he didn't run away?), becomes an office lady as a single mother, is impregnated by her son in her sleep, and her daughter at first rejects her family's lifestyle, then after a miscommunication accepts it and begins pregnant in turn.

Base +15, Imsolo +6, titswifter +12

(同人ゲームCG) [080121] [暁勝家のサークル] 家庭内交尾

Base +10, tmptmptmptmp +4

aww, i though this was a new release, but it's from 2008!

old times, though the artist is still active, his 2018 release featured Tsuyu from MHA

weird, you'd think this would be in vndb, but i can't find it.

summary, translated:

The first game of the pregnancy series, the first!
It is a long story novel game which makes children making across generations.
Peaceful everyday, repeated to the bottom ...
What is the last thing they will listen to?

■ Story

«Part 1»
Innocent girl, Yoko Kashiwagi
I was transferred to a certain high school.
However, the school had "rumors" ...
Swimming department where harlogies are repeated.
Desperate resistance is also empty
She could not help embedding.

«Part 2»
To raise a child, Yoko worked out a single unit.
However, one day I make mistakes in the company.
She was threatened by her boss, she unavoidably opened her body ...
However, it was not only in the company that it attacked her.
In the house I came home, my son, who has a desire for mother, was waiting ...

«Part 3»
A second baby was born, and the family became lively.
While my family's innocence was already becoming everyday,
One girl who had a cold eyes ...
Her name is Yuki Kashiwagi.
She has been wondering about sexual activity within her family for a long time
She also hoped to leave the house in the rebellious period.
And although her wish has come true ...

Base +7, titswifter +12, Grunt Arbiter +8