Changing lives, dynamic plans: Prospective assessment of 12-month changes in pregnancy timing intentions and personal circumstances using data from HER Salt Lake

PLoS One. 2021 Sep 20;16(9):e0257411. doi: 10.1371/journal.pone.0257411. eCollection 2021.


Objectives: To explore the association between changes in personal circumstances and shifts in pregnancy intentions.

Study design: New start contraceptive clients, who desired to prevent pregnancy for at least one year enrolled in the survey arm of the HER Salt Lake Contraceptive Initiative (September 2015 -March 2017) and responded to the question "What are your future pregnancy plans?" at enrollment and 12-month follow-up. We estimated multivariable binary logistic fixed-effects regressions to examine the association between changes in personal circumstances and a change from never desiring a pregnancy at enrollment to considering one in the future at 12-month follow-up.

Results: The majority of the 2825 participants (2246, 79%) maintained their pregnancy timing intention over the 12-month study period. Multivariable analyses of the 208 participants who changed from never desiring a pregnancy to considering pregnancy in the future at 12-month follow-up indicated that entering cohabitation (aOR 3.14, 95% CI 1.30-7.58), increased household income (aOR 1.06, 95% CI 1.00-1.13), and changes from unemployment to full-time employment (aOR 5.94, 95% CI 1.29-27.36) are associated with increased the odds of desiring a future pregnancy after never wanting one a year prior.

Conclusions: Pregnancy intentions are dynamic over twelve months and covary with partner status, household income, and employment status. Pregnancy intentions are linked to changes in life circumstances. Health care providers need to frequently assess pregnancy intentions and resulting contraceptive or preconception needs.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Databases, Factual
  • Employment
  • Family Characteristics
  • Family Planning Services*
  • Female
  • Humans
  • Income
  • Intention*
  • Logistic Models
  • Longitudinal Studies
  • Odds Ratio
  • Pregnancy
  • Women / psychology