How hormonal contraception prevents pregnancy
How hormonal contraception prevents pregnancy
Contraception is a method used to prevent pregnancy. Hormonal contraception uses oestrogen, progesterone or both to interrupt the menstrual cycle.
Step-by-step lessons on OCR GCSE Biology 3.2.5 Hormones in contraception. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.