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Logo of jroyalcgpracBJGP at RCGPBJGP at PubMed CentralJ R Coll Gen Pract at PubMed CentralRCGP homepage
J R Coll Gen Pract. 1976 February; 26(163): 147–149.
PMCID: PMC2157879

Pregnancy in women using intra-uterine contraceptive devices


Among 1,041 women fitted with intra-uterine contraceptive devices during a period of 21,445 months there were 51 pregnancies: a rate of 2·9 per hundred women years. Pregnancy occurred most commonly in the young and nulliparous. The importance of the patient checking her device is stressed. Pregnancy occurs most commonly soon after fitting, but may occur at any time. In more than half the cases pregnancy occurred with the device in the uterus. Though most pregnancies were uterine there was a high incidence of ectopic pregnancies. Many pregnancies ended in vaginal delivery, but since the Abortion Act 1967 fewer probably now go to term.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.
  • Hull FM, Henderson JM. Intra-uterine contraception in general practice. J R Coll Gen Pract. 1975 Dec;25(161):924–931. [PMC free article] [PubMed]
  • Ramkissoon-Chen R, Ta-Ko K. Extrauterine pregnancy and intrauterine devices. Br Med J. 1966 May 21;1(5498):1297–1297. [PMC free article] [PubMed]
  • Buckman J. Lysergic acid diethylamide. Br Med J. 1966 Jul 30;2(5508):302–303. [PMC free article] [PubMed]

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