NPR:

A new emergency contraceptive is already creating a stir. Particularly because the new pill Fine is hoping the Food and Drug Administration will soon approve, called ulipristal, works up to five days after unprotected sex.

"Emergency contraception is a woman's last chance to prevent an unintended pregnancy," says Fine, who is medical director of Planned Parenthood of Houston and Southeast Texas. "And half of all pregnancies in the U.S. are unintended." And unlike the leading drug now used to prevent pregnancy after the fact, called Plan B, whose effectiveness declines the longer a woman waits to take it, "ulipristal is just as effective between four and five days as it is in the first couple of days."

Religious extremists are working to deny straight people access to this drug.