WEB10 Apr 2024 · Key facts. As of 2019, adolescents aged 15–19 years in low- and middle-income countries (LMICs) had an estimated 21 million pregnancies each year, of which approximately 50% were unintended and which resulted in an estimated 12 million births (1,2). Based on 2019 data, 55% of unintended pregnancies among adolescent girls …