From the 2002 National Survey of Family Growth:
-Total number of pregnancies [PREGNUM recode based on the question below]
(Including this pregnancy,) how many times have you been pregnant in your life?
-Century Month for Pregnancy End Date (including live birth) [DATEND recode based on the question below]
In what month and year (did this pregnancy end / was this baby born)?
-Gestational length of pregnancy (in weeks) [PRGLNGTH recode, defined for both current and completed pregnancies]
[If a current pregnancy:] How many weeks or months pregnant are you now?
[If a completed pregnancy:] How many months or weeks had you been pregnant when (the baby was born / that pregnancy ended)?
-Pregnancy conception date for the most recent pregnancy is defined by DATECON, a recode constructed from DATEND and PRGLNGTH for completed pregnancies and date of interview and PRGLNGTH for current pregnancies.
-For each pregnancy, a recode OUTCOME is defined to indicate pregnancy outcome as shown below:
- Live birth
- Induced Abortion
- Still birth
- Ectopic pregnancy
- Current pregnancy