What does Ethinyl Estradol specifically control in terms of birth control pills?

Does the Ethinyl Estradol cause? Does this hormone prevent the egg from being fertilized and the Progesterone ( Levonorgestrel, Drospirenone, Desogestrel) is the hormone that causes all of the mood swings, bloating, irritability, and the loss of sexual desire?What does Ethinyl Estradol specifically control in terms of birth control pills?
it is synthetic estrogen and it keeps your ovaries from releasing an eggWhat does Ethinyl Estradol specifically control in terms of birth control pills?
Ethinyl Estradiol is a synthetic version of estrogen.


The progesterone is the bit that prevents ovulation, it also thickens cervical mucus making it hard for sperm to get through. It's the bit that causes mood swings.


The estrogen part is to stabilise the endometrium and help prevent breakthough bleeding, but it also helps to prevent ovualtion.