There is a Korean movie. While the couple were eating, the wife hinted that today was her ovulation day, that her husband and she wanted children, and asked the name of the movie.

You should be talking about the famous Korean love movie "Human Poisoning". Shortly after the movie started, when the hero and his wife finished eating, his wife asked her husband what day it was today. It implies that her husband ovulates today and wants to have sex with him and have a baby. At first, the man didn't understand the meaning. Later, his wife pointed to the calendar on the wall, because the doctor told her the ovulation period on the calendar, and she marked it with a circle. So after dinner, they go to bed to do sports. I think you must be talking about this movie.