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. 2022 Sep 1;19(1):187.
doi: 10.1186/s12978-022-01492-w.

Women's experience of unintended pregnancy and changes in contraceptive methods: evidence from a nationally representative survey

Md Nuruzzaman Khan  1 , M Mofizul Islam  2
Affiliations

Women's experience of unintended pregnancy and changes in contraceptive methods: evidence from a nationally representative survey

Md Nuruzzaman Khan et al. Reprod Health. .

Abstract

Background: Ineffective or no use of contraception following an unintended pregnancy contributes to a subsequent unintended pregnancy. This study aimed to determine whether women's experiences of unintended pregnancies affect changing their contraceptive using patterns.

Methods: We analysed the 2017/2018 Bangladesh Demographic and Health Survey data. The contraceptive switching pattern was computed by comparing women's contraceptives using data before and after pregnancy. Women were categorised into the following three groups, depending on their patterns of contraceptive use before and after pregnancy: no change, if there were no change in contraceptive using pattern; switched to higher effective contraceptives, if changed from pre-pregnancy less effective contraceptives to post-pregnancy more effective contraceptives; switched to less effective contraceptives, if changed from pre-pregnancy more effective contraceptives to post-pregnancy less effective contraceptives. Women's intention in the most recent pregnancy was our primary explanatory variable, classified as wanted, mistimed and unwanted. Multinomial multilevel logistics regression was used to determine the association between women's intention in the most recent pregnancy and women's contraceptive methods switching patterns from before to after pregnancy.

Results: Around 20% of the most recent pregnancies that ended with a live birth were unintended at conception. No contraceptive use was reported by 37% of women before their pregnancies which decreased to 24% after pregnancies. Overall, around 54% of women who reported no contraceptive use before pregnancy used modern contraceptives after pregnancy. The rate was higher among women who experienced unwanted pregnancy (73.4%) than mistimed (58.8%) and wanted (53.4%) pregnancy. Experience of mistimed pregnancy was associated with a higher likelihood of no contraceptive change (aOR, 1.84, 95% CI 1.41-2.39) and switching to less effective contraceptives (aOR, 1.58, 95% CI 1.10-2.26) than switching to more effective contraceptives. However, unwanted pregnancy was not associated with any significant change in contraceptives use from before to after pregnancy.

Conclusion: Experience of unintended pregnancy did not change women's contraception using patterns, which indicates the risk of repeat unintended pregnancies and associated adverse consequences, including maternal and child morbidity and mortality. Policies to ensure access to and use of modern contraceptives among women facing unwanted or mistimed pregnancies are recommended.

Keywords: Bangladesh; Contraceptive; Mistimed pregnancy; Switching patterns of contraception; Unintended pregnancy.

Plain language summary

Unintended pregnancy is considered a public health challenge in low- and middle-income countries (LMICs). Around 89% of the global occurrences of unintended pregnancies occur in LMICs. In absolute numbers, this is equivalent to nearly 88 million pregnancies. Adverse pregnancy consequences, including bleeding, haemorrhage and maternal mortality are common in this group. The adverse consequences are even higher among women facing unintended pregnancies more than once, i.e., repeat unintended pregnancies, which represent around half of the total occurrences of unintended pregnancies in LMICs. Ensuring proper access to effective contraceptives following birth is key to reducing repeat unintended pregnancies and associated adverse consequences. It is critical to know the patterns of women’s pre-pregnancy contraceptive methods use and whether experiences of unintended pregnancies affect their contraceptive methods uptake and their types. However, this data is completely lacking in the context of LMICs. Using nationally representative survey data from Bangladesh, we examined women’s contraceptive switching patterns from before to after pregnancy and their association with pregnancy types. We found increased likelihood of no change in contraceptive using pattern or switching to less effective contraceptives among women after they experienced mistimed pregnancy compared to those whose pregnancy was wanted. This pattern increases the risk of repeat unintended pregnancies in Bangladesh and associated adverse consequences, including maternal and child morbidity and mortality.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Sampling strategy of the 2017/2018 BDHS and sample selection procedure for this study
Fig. 2
Fig. 2
Contraceptive methods use before and after pregnancy across types of pregnancy intentions
See this image and copyright information in PMC

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