What to Do If You Go Past Your Due Date

Apr 14, 2022 Source: Cainiu Health

Dr. Lv Aiming

Introduction

If the due date has passed, it is generally advisable to visit the hospital to confirm the accurate due date. Some mothers experience irregular menstrual cycles, which may cause the estimated due date to change; therefore, a hospital visit is necessary to verify the due date. After 40 weeks of gestation, placental function begins to decline; by 42 weeks, this decline becomes significantly pronounced. At 41 weeks’ gestation, expectant mothers are advised to go to the hospital for evaluation, and delivery should be planned based on the examination results.

In daily life, many full-term pregnant women reach their due date without showing any signs of labor. What should be done if the due date passes?

What to Do If the Due Date Passes

If the due date is exceeded, it is generally advisable to visit a hospital to confirm the accurate due date. Some mothers experience irregular menstrual cycles, which may lead to miscalculation of the due date; therefore, confirmation at a hospital is essential. After 40 weeks of gestation, placental function begins to decline, and this decline becomes markedly pronounced by 42 weeks. At 41 weeks, expectant mothers are advised to undergo medical evaluation at a hospital, and delivery plans should be formulated based on the examination results. Typically, the mode of planned delivery is determined according to the mother’s cervical condition.

If the cervix is sufficiently mature, labor can be induced directly via intravenous infusion of a low-dose oxytocin regimen. If cervical immaturity is present, cervical ripening should first be promoted. This can be achieved either by vaginal administration of prostaglandin suppositories or by insertion of a cervical balloon catheter into the cervix to facilitate cervical ripening, followed by induction of labor.

One of the most critical aspects of prenatal care is accurate estimation of the due date. Key reference parameters include the mother’s last menstrual period (LMP) and early-pregnancy fetal ultrasound reports. For mothers with regular menstrual cycles, the due date is calculated from the first day of the LMP: subtract three months (or add nine months) and add seven days. However, if the menstrual cycle is irregular, the LMP is uncertain, or conception occurs during lactation before menstruation resumes, the due date should instead be estimated based on early-pregnancy ultrasound findings. We hope this information proves helpful to you.

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What is the due date if the last menstrual period was April 22?

Under normal circumstances, with the last menstrual period on April 22, the estimated due date would be around January 29 of the following year. However, individual differences may lead to earlier or later delivery dates, which are usually considered normal physiological phenomena. The patient should pay attention to diet and personal health, maintain a balanced nutritional intake, and ensure good lifestyle habits.

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Does going past the due date affect the fetus?

If delivery has not occurred by the estimated due date, it may have some impact on the fetus—though the extent depends on the specific circumstances. It is generally considered normal for delivery to occur up to 10 days beyond the estimated due date, as accurately determining the exact time of conception and fetal maturity can be challenging in individual cases. However, if delivery has not occurred more than 10 days past the estimated due date, you should visit the hospital for an ultrasound examination; your physician may also administer medication to induce labor.