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The Menstrual Cycle

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Introduction

The Menstrual Cycle At day one the endometrium (womb lining) is breaking down because of the drop in progesterone at the end of the previous cycle. The low level of progesterone allows follicle stimulating hormones (FSH) to be secreted by the pituitary gland. ...read more.

Middle

#3 reduces the production of FSH which causes a drop in oestrogen production. #4 days thirteen to fourteen LH peaks this stimulates ovulation then the LH makes cells grow in the space where the egg was (corpus luteum) and the cells release progesterone. ...read more.

Conclusion

If the egg is fertilised and implants the corpus luteum goes on producing progesterone until the placenta is developed enough to make its own the high levels of progesterone prevent the endometrium and the developing baby from being shed. The progesterone only mini pill and contraceptive injection and implants make your body think you are pregnant so no egg is released. ...read more.

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