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).
But ART is not an infallible treatment. Even if pregnancy is achieved, many women do not go on to deliver a baby. The American Pregnancy Association explains that the live birth rates for each cycle of ART in the US are: 1  30-35% for women under 35.2  25% for women aged 35 to 37. 3  15-20% for women aged 38 to 40. 4  6-10% for women over 40.ven if pregnancy is achieved, many women do not go on to deliver a baby. The American Pregnancy Association explains that the live birth rates for each cycle of ART in the US are: 1  30-35% for women under 35. 2  25% for women aged 35 to 37.