Predicting when your baby is due has never been easier. Instead of relying on doctors using ‘standard’ prediction estimates which are often off by several weeks, you can use this simple and medically sound hack from the British Journal of Obstetrics and Gynaecology.
Simply measure the expecting woman’s cervix. A woman who is expecting typically has a cervix length between 3 and 5 cm. I could convert that to inches…1 and 3/16th of an inch to 2” if you insist on using weights and measures based on British monarchs who died centuries ago (well done America and Liberia!) Anyhow, when the cervical length drops to 1cm (3/8”) there is a 85% chance of delivering in the next 7 days.
Apparently, the body preps for birth, days in advance and the cervix gets shorter in preparation for going into labor. Neat!