A recent report by CDC has revealed that nearly one fifth of teen pregnancies are repeat pregnancies.

Repeat pregnancy rate was highest, 21.6%, among American Indians and Alaska Natives followed by Hispanics (20.9%) and non-Hispanic blacks (20.4%). Non-Hispanic whites had the lowest repeat pregnancy rate of 14.8%.
The team also looked at contraceptive measures the young moms were taking to avoid further pregnancies in their teenage. Though 91.2% of them used some form of contraception after first pregnancy, only 22.4% had used the most effective methods, such as tubal ligation, vasectomy, implant, and an intrauterine device.
The authors indicated the importance of educating teen moms about effective contraception methods and ensuring the availability of birth control options to them.
Source-Medindia