Can withdrawal (coitus interruptus) during the ovulation period result in pregnancy?

Oct 28, 2021 Source: Cainiu Health

Dr. Zhang Lu

Introduction

In general, pregnancy may occur with coitus interruptus (withdrawal method) during the ovulation period. The withdrawal method is not a reliable form of contraception—particularly during ovulation—when the risk of pregnancy is relatively high. If pregnancy is not currently desired, it is advisable to use scientifically proven and effective contraceptive methods, such as condoms, combined oral contraceptives, or intrauterine devices (IUDs), to prevent unintended pregnancy.

Generally, withdrawal (coitus interruptus) during the ovulation period may result in pregnancy. A detailed analysis follows:

Precum—fluid secreted by the male urethral glands before ejaculation—may contain a small number of viable sperm. If these sperm enter the female reproductive tract during the ovulation period and encounter a mature oocyte, fertilization may occur. Moreover, timing withdrawal accurately is extremely difficult; even a slight delay just before ejaculation may allow a significant quantity of sperm to enter the vagina. Since a woman’s fertility peaks during ovulation, even a small number of sperm may lead to conception.

In addition, ovulation timing can shift earlier or later due to factors such as emotional stress or environmental changes. Misjudging the ovulation window—combined with the inherent unreliability of withdrawal—further increases the risk of unintended pregnancy.

Therefore, withdrawal is not a reliable contraceptive method, particularly during the ovulation period, when the risk of pregnancy is significantly elevated. For individuals not currently planning pregnancy, it is advisable to adopt scientifically proven and effective contraceptive methods—such as condoms, oral short-term contraceptives, or intrauterine devices (IUDs)—to prevent unintended pregnancy.

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