Comment on

• A reminder that human behavior frequently refuses to conform to models created by researchers.

  Luker KC. Luker KC. Fam Plann Perspect. 1999 Sep-Oct;31(5):248-9. Fam Plann Perspect. 1999. PMID: 10723651
• Pregnancy intentions may not be a useful measure for research on maternal and child health outcomes.

  Sable MR. Sable MR. Fam Plann Perspect. 1999 Sep-Oct;31(5):249-50. Fam Plann Perspect. 1999. PMID: 10723652
• Ambivalent feelings about parenthood may lead to inconsistent contraceptive use--and pregnancy.

  Zabin LS. Zabin LS. Fam Plann Perspect. 1999 Sep-Oct;31(5):250-1. Fam Plann Perspect. 1999. PMID: 10723653 No abstract available.
• Intended pregnancies and unintended pregnancies: distinct categories or opposite ends of a continuum?

  Bachrach CA, Newcomer S. Bachrach CA, et al. Fam Plann Perspect. 1999 Sep-Oct;31(5):251-2. Fam Plann Perspect. 1999. PMID: 10723654
• Options for measuring unintended pregnancy in cycle 6 of the National Survey of Family Growth.

  Peterson LS, Mosher WD. Peterson LS, et al. Fam Plann Perspect. 1999 Sep-Oct;31(5):252-3. Fam Plann Perspect. 1999. PMID: 10723655