Eli5: How do birth control rings actually work as contraceptives?

Question

What process in the vaginal ring inhibits conception? I don’t understand it clearly.

Thanks in advance!

In: Biology

Answer 1

>The ring steadily releases the hormones oestrogen and progestogen into your bloodstream, which prevents the release of an egg each month.
It also thickens the cervical mucus, which makes it more difficult for sperm to move through the cervix, and thins the lining of the womb so a fertilised egg is less likely to implant itself.

Source: https://www.nhs.uk/conditions/contraception/vaginal-ring/