Видео с ютуба What Is Period

How menstruation works - Emma Bryce

Why do women have periods?

Menstrual Cycle Basics | 3D animation (1/2)

Why Do Girls Get Periods? | Menstruation | The Dr Binocs Show | Peekaboo Kidz

The Menstrual Cycle Explained: A Guide to the 4 Phases & Hormones

What is a period?

Менструальный цикл | 3D-анимация (2/2)

ovulation and menstrual cycle often called period|medical animationDandelionTeam #ovulation #period

What are periods?

What Is The Menstrual Cycle? | Physiology | Biology | FuseSchool

What does the first period feel like?

Объяснение менструального цикла | Фазы менструального цикла | Процесс овуляции

The Menstrual Cycle Explained: From Period to Ovulation (3D Animation)