I just want to know...

How many women under the age of 18 get pregnant every year?

I don't know but I bet it is probably a big number

just google it. some smartypants analysts would give you the answer.Ü haha! or if someone's online, please answer the question.Ü

Approximately 40 percent of teen girls become pregnant before they reach 20 years old.

To many now a days. its a big amount I know that cause I was on of them and so was half my 12th grade class and also the 10th and 11th grade my 12th grade year.

Each year, almost 750,000 teenage women become pregnant.
http://www.guttmacher.org/pubs/teen_preg_stats.html

Do bear in mind that there is a lot of variation - especially from country to country, but also within, say, the USA.

A lot depends on the local culture and standards - whether the community is a strict religious one, whether the society in general is open and flexible - and importantly, how easy it is for teens to get contraceptives.