Women Can Try Pregnancy Again ASAP After Miscarriage

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Women who miscarry often ask their doctors how long they should wait before trying to have a child again. A new study shows that there is no reason for asking women to hold off trying to conceive.

Pregnancy after miscarriage

The World Health Organization (WHO) recommends waiting at least six months however, researchers are challenging that with new studies.

A Scottish researcher said their findings suggest the WHO guidelines need to be revisited. "Our data showed, that at least in Scottish women, there is no justification in delaying a pregnancy following an uncomplicated miscarriage," said lead researcher Dr. Sohinee Bhattacharya, a lecturer in obstetric epidemiology at the University of Aberdeen, Dugald Baird Centre for Research on Women's Health at Aberdeen Maternity Hospital in Aberdeen.

"This research will help health-care providers to counsel women regarding timing of future pregnancies and will allow couples to make informed choices based on hard evidence," Bhattacharya said.

For this study, Bhattacharya's team gathered data on 30,937 women who had had miscarriages in their first pregnancy and then became pregnant again. Thy found that women who got pregnant within six months were less likely to miscarry again, to have to terminate the pregnancy or to have an ectopic pregnancy compared with women who got pregnant six to 12 months after their miscarriage. They did find that some of these women were at a higher risk of induced labor. In addition, the study showed that for some of these women, they were less likely to have a cesarean delivery, have a premature delivery or have a low birth weight baby.

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"Women over 35 are more likely to experience difficulties in conceiving, and women aged 40 years have a 30 percent chance of miscarriage, which rises to 50 percent in those aged 45 years or more. Any delay in attempting conception could further decrease their chance of a healthy baby," the researchers wrote.

Julia Shelley, an associate professor from the School of Health and Social Development at Deakin University in Melbourne, Australia said the study did not conclusively answer the question of when the best time was to get pregnant after a miscarriage.

"In research such as this study, it is not possible to tell whether the intervals between pregnancies were deliberately chosen, or were accidental or involuntary," Shelley said. "Consequently, we cannot really tell whether pregnancies conceived very soon after a miscarriage really do have better outcomes, or whether women [and couples] who conceive quickly following a miscarriage have better outcomes in a subsequent pregnancy than couples who take longer to conceive."

"I think we can say that the study suggests that there is no harm in conceiving again immediately following a miscarriage," Shelley said.

She added, "I don't think the study provides good evidence that pregnancies conceived six to 12 months following a miscarriage will have poorer outcomes than those conceived more quickly. For example, the higher rate of pregnancy terminations in pregnancies conceived between 6 and 12 months may mean that more of these pregnancies are unintended."

"I agree women should wait a couple of months after a miscarriage then try again, but we really never had the hard evidence why we do that," said Dr. George Attia, an associate professor of obstetrics and gynecology at University of Miami Miller School of Medicine. He stated. "It's good to find a study that supports our way of thinking.”

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