I have been playing this game called Hazumi and the Pregnation. It's a JRPG based in what seems to be some kind of dystopian future Japan. Birth rates have gone done, and thus the government offers a bonus for any woman giving birth, and takes custody of the child for free. The game starts off with the main character, a female student of unspecified age, starting her side business selling her body, eventually trying to get pregnant as many times as possible, although it is probably possibly to skip pregnancy altogether if you wish.
Two main things you do are prostitution and working part time in a cafe, each one has an associated minigame. There is a dating app you use to score your prostitution gigs, each customer has traits such as "likes breasts", "likes first trimester", and various dislikes. The breast play options in the minigame are surprisingly versatile with nipple play, breastfeeding (which works regardless of lactation), and tittyfucking.
The cafe minigame has you taking orders from customers sitting at table, you score more money for memorizing long combos of orders and serving them without errors. The patrons will also randomly ask for sex instead, so you can take them into the bathroom for a quickie, or, if you are lactating, they can ask for breastmilk instead of a regular order.
Another thing about the game that pushes correct buttons is me, that it appeals to the data nerd in me. The status screen shows the exact amount (to the milliliter) of cum currently on Hazumi's body, vagina and the sperm count inside her uterus. It also show's her bra cup size, bust, waist and hip measurements. Hazumi starts out as an F-cup. I've had two pregnancies so far in my first run, first one peaked at G cup during lactation, second was a twin pregnancy with I cup peak size. The growth algorithm is a big wonky, I went from I straight down to F after the postpartum phase ended.