The Food and Drug Administration (FDA) announced on Wednesday, it will allow 17-year-old girls to buy the morning after pill without a prescription.
In the past, only women 18 years and older could buy it.
The morning after pill is not an abortion pill, but it does lower a woman's chance of getting pregnant if contraception fails.
The pill, also called ''Plan B,'' is about 89 percent effective at preventing pregnancy if taken within 72 hours.
However the pill doesn't work if a woman is already pregnant.
Supporters say it reduces the number of abortions, but conservatives argue it promotes promiscuity.
The FDA. says it will not fight the judge's decision.
17-year-olds will be allowed to buy the morning after pill once the drug manufacturer requests the change.
They also have been ordered to look at removing all restrictions on the pill.