Editing Teenage pregnancy (section)

==Definition==
The [[World Health Organization]] defines [[adolescence]] as the period between the ages of 10 and 19 years.<ref name="WHO1"/>

The mother's age is determined by the easily verified date when the pregnancy ''ends'', not by the estimated date of conception.<ref name="Kost">{{cite web|vauthors=Kost K, Henshaw S, Carlin L | title = U.S. Teenage Pregnancies, Births and Abortions: National and State Trends and Trends by Race and Ethnicity| year = 2010| url = http://www.guttmacher.org/pubs/USTPtrends.pdf| quote = Pregnancies are the sum of births, abortions and miscarriages. Please note that in these tables, "age" refers to the woman's age when the pregnancy ended. Consequently, actual numbers of pregnancies that occurred among teenagers are higher than those reported here, because most of the women who conceived at age 19 had their births or abortions after they turned 20 and, thus, were not counted as teenagers.}}</ref> Consequently, the statistics do not include pregnancies that began at age 19, but that ended on or after the woman's 20th birthday.<ref name="Kost" /> Similarly, statistics on the mother's marital status are determined by whether she is married at the end of the pregnancy, not at the time of conception.<ref>{{Cite journal |last1=Mosher |first1=William D. |last2=Jones |first2=Jo |last3=Abma |first3=Joyce C. |date=24 July 2012 |title=Intended and unintended births in the United States: 1982–2010 |url=https://pubmed.ncbi.nlm.nih.gov/23115878/ |journal=National Health Statistics Reports |issue=55 |pages=1–28 |issn=2164-8344 |pmid=23115878}}</ref>