Teenage pregnancies in Gloucestershire have fallen by 25% in 10 years.
Office for National Statistics figures show between 1998 and 2008, the number of under-18s who fell pregnant dropped from over 400 a year to just over 300.
The NHS and the county council both provide services aimed at preventing teenage pregnancies and supporting parents.
Services include sexual health drop-in clinics at some sixth forms.
An NHS Gloucestershire spokeswoman said other successful schemes include giving sex and relationship education to vulnerable young people, and providing contraceptive advice in community pharmacies.
A key fob called a C Card that can be exchanged for free condoms has also been introduced.
"However, despite the progress made to date in the county, it is vital that activity to reduce teenage pregnancy continues," the spokeswoman added.