1 Cecum: This first section of your large intestine looks like a pouch, about two inches long. It takes in digested liquid from the ileum and passes it on to the colon.  Colon: This is the major section of the large intestine; you may have heard people talk about the colon on its own.
Differences by Age. Older teens have much higher pregnancy rates than younger teens. In 2010, teens ages 18 to 19 had a pregnancy rate of 96.2, compared with rates of 30.1 among teens ages 15 to 17 years, and 1.1 among teens under age 15.[9] (Appendix 1).ifferences by Age. Older teens have much higher pregnancy rates than younger teens. In 2010, teens ages 18 to 19 had a pregnancy rate of 96.2, compared with rates of 30.1 among teens ages 15 to 17 years, and 1.1 among teens under age 15. [9] (Appendix 1).
NCHS Data Brief â  No. 89 â  April 2012 â â2ââ  â¢ The 2010 rate was 44 percent below the recent peak in 1991, and 64 percent lower than the all-time high level of 96.3 recorded during the baby boom year of 1957 (1).â¢ Birth rates fell from 2009 to 2010 for teenagers in age groups 10â14, 15â17, and 18â19.