The document outlines the stages of pregnancy from fertilization to birth. It explains that fertilization occurs when sperm meet an egg in the fallopian tubes. The fertilized egg is called a zygote and begins developing in the uterus over the next 9 months as the placenta, umbilical cord, amniotic sac, and amniotic fluid form to support the growth of the embryo and fetus until birth. The next lesson will cover labor and delivery.

1. Stages of pregnancy 1P5: Tuesday 7 th December

2. Sperm are deposited into the vagina and travel up the uterus to the oviduct (200-300 million sperm are present) Following fertilisation the sperm and egg are known as a ZYGOTE

3. Uterus Oviduct An egg is released from the ovary

4. 3 Weeks

5. 4 Weeks

6. 6 Weeks

7. 6 Weeks

8. 8 Weeks

9. 9 Weeks

10. 12 Weeks

11. 16 Weeks

12. 20 Weeks

13. 24 Weeks

14. 30 Weeks

16. Organ Function Placenta Umbilical cord Amniotic Sac Amniotic Fluid Provides nutrients to the developing embryo Transports nutrients and oxygen from mother to baby and waste back. It is attached to mother and baby Contains the Amniotic Fluid Fluid in the amniotic sac that cushions the baby from bumps

17. Next lesson we are going to look at what happens when the baby is ready to be born, this is known as LABOUR