Why do people take soy and birth control pills when estrogen is really dangerous?

Ya i dont think this is a question but more of a persuasion. im on birthcontrol pills because without them i can feel the egg going into my uterus and it is very painful, also I get severe hemeroging cysts and it breaks up the cysts so i dont....die. all medicines have side effects so think about all the reasons why people may use this other than protecting against babies. because then i agree with you but i need to take it for my health.