My wife, who is of childbearing age, has a methodical personality from the beginning, so she always carried this "rhythm notebook", a so-called "ovulation notebook".A notebook filled with detailed information about her ovulation cycle, body temperature, the date her period started, and even more, the date she and her husband and I worked hard to make a baby.However, it seems that her wife dropped the important "ovulation notebook" somewhere on the way home from shopping the other day.She hurriedly searched for it, but in the end she didn't come out and gave up.