Many young people attending genitourinary medicine (GUM) clinics are using inadequate contraception and are at high risk of unplanned pregnancy.1 Those attending for pregnancy testing or to request emergency contraception are a particularly high risk group, with the majority failing to return for contraceptive follow-up and continuing to use unreliable methods of contraception2 ,3 At 43.5 per 1000, the London Borough of Wandsworth has an under-18 teenage pregnancy rate (TPR) well above both the national average of 35.4 and that of London as a whole (37.1).4 Sixty-one percent of pregnancies in this age group end in termination (67% in Wandsworth).4

We carried out a cross-sectional study of all pregnant teenagers aged ≤18 years accessing the St George's Hospital GUM service …