The National Institute for Health and Care Excellence (Nice) has said under-25s, including those under the age of consent, should have better access to emergency contraception.
Handing out contraception in advance of intercourse is not uncommon but women could now be able to obtain the morning-after pill in bulk on the NHS for the first time.
However there has been some criticism of the plans, with Josephine Quintavalle, from the pressure group Comment on Reproductive Ethics, telling the Telegraph: "I think it is really worrying and deeply unwise.
"Having a stockpile of the morning-after pill on hand is a licence for unprotected sex, and that puts young women at increased risk of sexually transmitted diseases."
Roger Goss, from Patient Concern, added: “It seems like a way of promoting promiscuity.”
Health Secretary Jeremy Hunt is also said to be opposed to the plans.
The Nice guidance though moves to dispel that claim by stating: "The evidence shows that advance provision of oral emergency contraception does not encourage risky behaviour among young people.
"Evidence also shows that women who have emergency contraception in advance are more likely to use it, and to use it sooner after unprotected sex."
Figures released by the Office for National Statistics show the number of pregnancies in those under the age of 18 fell to 27,835 in 2012, compared with 31,051 the year before.