Eleven states in total have passed laws restricting a woman's access to abortion, with some states approving near-total bans of the procedure altogether.
PCOS is one of the most common causes of infertility.
Even when the source is extreme exercise or malnutrition, the process that stops women from getting their periods begins in the brain.
Military medical facilities can only provide abortions in the event of rape, incest or a risk to the woman's life.
Crisis Pregnancy Centers are arguing a California state law requiring them to provide women with information about abortion infringes on their First Amendment rights.
Senate Bill 8 has been called "the most stringent and most important anti-abortion bill" in years.
Dunham made the comment on her weekly 'Women of the Hour' podcast.
The creator, producer and star of "Girls" says she will rest rather than head out on the press circuit ahead of season 5.