What is the percent chance of getting pregnant from precum

If you’re trying to get pregnant — or avoid pregnancy — "pre-ejaculate" is an important word to know. Here's what you need to understand about its role in conception.

What is pre-ejaculate (precum)?

Pre-ejaculate, also sometimes called precum, is a clear, thick fluid that comes out of a man's penis when he is aroused. This usually happens right before he ejaculates.

Unlike actual semen, pre-ejaculate doesn't come from the testes but instead from the Cowper's gland — two pea-sized glands located right beneath the prostate gland. Pre-ejaculate may act like as a lubricant during sex, and it also makes semen less watery, creating a conducive living environment for sperm.

Can you get pregnant from pre-ejaculate?

In a word, yes. Pre-ejaculate may contain sperm, which means you could get pregnant even if your partner doesn't fully ejaculate into your vagina.

There hasn't been a lot of research on this, but one small study found that over 40 percent of men had some sperm in their pre-ejaculate.[1]

It's thought that this is "cross-contamination" from semen that may be present in the urethra (the tube that transports urine from the bladder to the tip of the penis) from a past sexual encounter, since both pre-ejaculate fluid and semen pass through the urethra.

Can you get pregnant if the man "pulls out" before orgasm?

Again, yes. Most men can't tell when they've pre-ejaculated, and withdrawal itself takes a lot of self-control, which can be quite difficult when you're in the heat of the moment. And if even a few drops of semen land on the outside of your vagina, sperm may still swim in, which can lead to pregnancy.

It's also important to remember that "pulling out" doesn't protect you against STDs. Some STDs, like genital warts and herpes, are spread through skin-to-skin contact, while others, such as chlamydia, syphilis or gonorrhea, can be carried in precum. So if you're worried about any STD, make sure that you use a condom.

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If you're actively trying to avoid pregnancy, the main argument for withdrawal is that it keeps some semen out of the vagina. Other forms of birth control, like condoms, are more effective (but not foolproof). You can combine the two for a more potent pregnancy protection, or consider a more reliable method, such as the birth control pill or the IUD.

What are your odds of getting pregnant from pre-ejaculate?

It's impossible to know for sure, as it can vary from person to person and with each sexual encounter. The best data available are studies that look at the withdrawal method. If your partner "perfects" the pull-out method, then your chances are relatively low: only about 4 percent.

But the reality is that doesn't always happen, which is why the "real life" effectiveness is only about 22 percent.[2] That means about 22 out of 100 people who use the withdrawal method get pregnant every year, or roughly one in five.

By comparison, the IUD has a failure rate of less than 1 percent, while methods like the pill or patch are under 10 percent, and condoms are under 20.

Bottom line? Pre-ejaculate is still ejaculate, which means it most likely contains sperm. If you're currently trying to avoid pregnancy, your best bet is to use a more reliable method of birth control.

From the What to Expect editorial team and Heidi Murkoff, author of What to Expect When You're Expecting. What to Expect follows strict reporting guidelines and uses only credible sources, such as peer-reviewed studies, academic research institutions and highly respected health organizations. Learn how we keep our content accurate and up-to-date by reading our medical review and editorial policy.

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Contrary to popular belief, sperm can leak into pre-cum, which can lead to pregnancy. Using a barrier method or other form of contraception may help reduce the risk of unintended pregnancy.

Pre-cum isn’t something you can control. The fluid release is an involuntary bodily function that happens right before ejaculation.

This is why the withdrawal method doesn’t work as well at preventing pregnancy as other birth control options, such as pills or condoms.

Even if you pull out right before you climax during vaginal intercourse, pre-cum is still likely to enter your partner’s vagina, which can lead to unintended pregnancy.

Some research estimates that around 20% of people who use the withdrawal method will become pregnant in a year.

Plus, according to a 2017 report from the Centers for Disease Control and Prevention (CDC), nearly 19% of unmarried males in the United States reported using the withdrawal method.

Overall, the failure rate for this method is about 4% with perfect use and 20% with typical use.

Before climax, the penis releases a fluid known as pre-ejaculation, or pre-cum. Pre-cum comes out right before semen, which has live sperm that can lead to pregnancy.

Many people believe that pre-cum doesn’t include sperm, so there’s no risk of unintended pregnancy. But that is not true.

A lot of misinformation exists about this topic, but the short answer is: Yes, it’s possible to get pregnant from pre-cum.

Here is a closer look at the likelihood of pregnancy upon exposure to pre-cum in several different scenarios:

You’re right: Pre-cum doesn’t actually contain any sperm. However, it’s possible for sperm to leak into pre-cum.

Pre-cum is a lubricant produced by a gland in the penis, which is released before ejaculation. Semen may linger in the urethra after ejaculation and mix with pre-cum while it’s on its way out.

In fact, a 2016 study found mobile sperm present in the pre-cum of nearly 17% of its participants. Another older study published in 2011 found mobile sperm in 37% of pre-cum samples given by 27 participants.

Peeing before sex may help flush out any leftover semen, reducing the chance sperm will appear in the pre-cum.

The short answer is yes: You can get pregnant from pre-cum even if you’re not ovulating.

Although pregnancy is most likely to happen during ovulation, sperm can actually live inside your body for as long as 5 days. This means that if sperm is inside your reproductive tract before ovulation, it’s possible it’ll still be there and alive when you do ovulate.

Ovulation typically happens around the middle of your menstrual cycle. This can be anywhere from 7-14 days before you start your next period.

Since sperm has a 5-day life span inside your body, if you have sex regularly for 5 days before as well as on the day you ovulate — known as “the fertile window” — you have a higher chance of becoming pregnant.

People with irregular periods may have more difficulty knowing when they’re ovulating and fertile.

The pull-out method isn’t an effective way to prevent pregnancy. If you do use it, then it may be helpful to have emergency contraception (EC) handy in your medicine cabinet.

EC can help prevent pregnancy up to 5 days after having sex without a condom or other barrier method. That’s because it delays or prevents ovulation from happening in the first place.

This means your mature egg won’t be released to be fertilized. But it is not intended as a method for contraception. It makes more sense to use a more reliable form of contraception to prevent an unintended pregnancy from happening in advance.

Two types of EC can be obtained over the counter or through a doctor. They include:

Hormonal EC pills

You can take hormonal emergency contraceptive pills up to 5 days after having sex without a condom or other barrier methods. They’re most effective when you take them within the first 72 hours.

Hormonal EC pills are safe to take but, like hormonal birth control pills, have some side effects. This can include:

  • nausea
  • vomiting
  • breast tenderness
  • stomach pain
  • headache
  • dizziness
  • fatigue

You can purchase EC pills at your local drugstore. They can cost anywhere from $20 to $60, depending if you buy a generic or name-brand product.

If you’re insured, you can call a doctor to request a prescription. EC pills are considered preventive care, so they’re often free with insurance.

Emergency IUD contraception

The Copper-T is an intrauterine device (IUD) that can also work as emergency contraception.

According to Planned Parenthood, a nonprofit group that promotes reproductive healthcare, the Copper-T IUD can reduce your risk of becoming pregnant by more than 99%. This makes it more effective than hormonal EC pills.

A doctor can insert the Copper-T IUD up to 5 days after sex without a condom or other barrier method to prevent pregnancy. Plus, as a form of long-term birth control, the Copper-T IUD can last for 5 to 10 years, depending on the type.

Although the Copper-T IUD works better than EC pills, the steep cost of insertion can be a barrier. If you’re uninsured, it can cost up to $1,300 in the United States. Most insurance plans will cover the Copper-T IUD for free or at a reduced cost.

Although the withdrawal method may be effective at times, there’s still a chance you may become pregnant from pre-cum. If you think you may be pregnant, you can take an at-home pregnancy test to find out for sure.

You may want to take an at-home test right away, but that can be too soon. Most doctors recommend you wait until after the first day of your missed period to take a pregnancy test. For the most accurate result, you should wait until the week after your missed period to test.

People who don’t have regular periods should wait to test until at least 4 weeks after having sex without a condom or other barrier method.

You should confirm your results with a doctor. Although a positive result is almost always accurate, a negative test result isn’t as reliable. You may have tested too early or might be taking medications that have affected the results.

A doctor may have you take a urine test, blood test, or both to determine if you’re pregnant or not. If you are pregnant, make sure to speak with the doctor about your options.

Your chance of becoming pregnant from pre-cum may be slim, but it can still happen. Sperm can still be present in the urethra and mix with pre-cum that’s released before ejaculation.

If you use the withdrawal method, keep in mind that around 20% of people will become pregnant over the course of a year when using this method.

Choose a more reliable method of contraception if you want to avoid pregnancy, and consider keeping emergency contraception on hand if needed.

See a doctor if you have any concerns or have a positive pregnancy test. The doctor can walk you through your options for family planning, abortion, and future birth control.