Science Writers at Clue

Science Team

This article was a collaborative effort by members of Clue’s science and content teams and was produced using leading sources in American contemporary midwifery practice.

Bleeding

Uterine fibroids: a common reason for irregular bleeding and pain

Fibroids are abnormal growths of muscle tissue that form in or on the walls of the uterus.

A balance scale with drops of blood dripping into each plate.a

Bleeding

What’s “normal”?: period volume and heaviness

Different birth control methods may affect the heaviness of your period

Thermometers with different temperatures, on orange background

Fertility

Basal Body Temperature (BBT): How is it used to estimate ovulation?

Your reproductive hormones have a measurable impact on your temperature.