Birth control pills are available in the U.S. only with a prescription. Now a drugmaker is asking the FDA to approve a progestin-only contraceptive that would be available without one at pharmacies.

To best protect against unintended pregnancy, emergency contraceptives like Plan B or Ella need to be taken within five days of unprotected sex, but a large number of pharmacies don't stock the pills.

To best protect against unintended pregnancy, emergency contraceptives like Plan B or Ella need to be taken within five days of unprotected sex, but a large number of pharmacies don't stock the pills.