i think the common cause of adolescent pregnancy is when that adolescent enters into a relationship, and when she allow herself to engage this certain things, which is sexual intercourse. it doesn't matter even though it is her first time of having sex to a guy, there is a certain things happen that the pregnancy of first sex might possible to any woman...
Africa
pregnancy and other stuff
school drop-out,teenage pregnancy
Lawrence S. Neinstein has written: 'Issues in reproductive management' -- subject(s): Chronic Disease, Chronic diseases in pregnancy, Complications, Contraception, Etiology, Female Infertility, Infertility, Female, Pregnancy 'Adolescent health care' -- subject(s): Adolescent medicine, Handbooks, Handbooks, manuals, Adolescent Medicine
It can not cause pregnancy.
Puberty is the cause. It is the sign that you are growning up and that you are becoming an adult.
Unprotected sex causes pregnancy.
I believe the adolescent age would be adolescent pregnancy, identity crises, drug related health problems and alcohol related problems. They may also be faced with communicable diseases such as STD and HIV. Also according to the WHO many die due to complications and illnesses that may be avoided or prevented.
Pregnancy.
Pregnancy.
sex
The cause of premarital pregnancy is having sex, just like marital pregnancy.