The Food and Drug Administration said 17-year-olds will no longer need a doctor's prescription to get the Plan-B birth control pill.
This comes after a federal judge ruled the Bush administration let politics drive their decision to allow over-the-counter access only for women 18 and older.
Pro-life groups say it is the equivalent of an abortion pill.
Wendy Wright of Concerned Women for America told CBN News that politics affected the FDA's decision.
"This decision is driven by politics, not what is good for parents or minors. Parents should be furious at the FDA's complete disregard of parental right and the safety of minors," she said.
Wright called the decision a "very bad precident."
"They started with making it available to 17 years," she added. "But then it is very likely there will be more pressure put on the FDA and they will buckle again to the politics of this and the FDA will make it available to younger and younger age children."
The Plan-B morning after pill is a high dose of regular birth control pills.
Doctors say even the lower dose pills can cause blood clots, heart attack and strokes in healthy women.
Wright says the morning-after pill puts women, and now 17-year-olds, at an even greater risk.