Interesting piece here about what does and doesn't work to reduce teenage pregnancy in the UK – written from the perspective of the audience (or a recent graduate from teenage).
However, one of the things these personal accounts tend to miss is the higher level social mechanisms.
Daniel Nettles of Newcastle University classic work suggests that early onset of reproduction in human populations is something that is the result of the population (not an individual) feeling under critical pressure. His analysis suggests the variation in regional rates across the UK is simply explained by this factor.
A useful reminder: before you rush off trying to get an authentic "user" perspective on a problem to define your solution, don't forget to look at bigger and broader factors like this. How things are may be a result of "we" forces that "I" can't begin to see.