Also known as: ライフマーク
A Tattoo of sorts on the stomach used to count how many times a character got Pregnant/how many children that character had.
Usually more tattoos are added the more children one has, similar to a Tally.
The symbol is often a heart or child icon, but sometimes the number of persons or details are written directly in text.
When a child has died due to miscarriage, abortion, etc., a heart break symbol or a child icon with a diagonal line is often used.
When the purpose is to abort a child from the beginning, it is called an “abortion mark” and is distinguished from a “pregnancy mark”.