BiologyHow do Organisms Reproduce

Menstrual Cycle Timeline

Move through the 28-day cycle and see what happens each day.

Day of cycle14

Phase

Ovulation

Uterine lining

Thick, ready for implantation

Egg

Released from the ovary

Day14

Menstrual cycle — 28 day timelinePhase: Ovulation

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If fertilisation does not occur, the thickened lining breaks down — that is menstruation.

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