How Soon After Sex Can I Take A Pregnancy Test?

Question: How soon after sex can I take a pregnancy test?

If you are trying to conceive, taking a pregnancy test immediately after an unprotected sexual intercourse will get you disappointed.

Likewise, if you routinely have unprotected sex with your boyfriend and test negative for pregnancy only a few days after, it still does not completely exclude pregnancy, especially if your period is not yet due.

The truth is you will always test negative for pregnancy if the test is carried out immediately after intercourse. Your body has not had time to release the pregnancy hormone (hCG) into your blood and urine yet. MedlinePlus

Either way, it’s important that you have some patience and test at the recommended time.

Depending on the pregnancy kit used, it’s possible you could detect pregnancy a few days before your next period. Some early-response pregnancy kits can detect pregnancy several days before your period, but they are most reliable from the day your period is due or after. 

Though this is not 100 percent accurate, it may ease anxiety in women who are trying to conceive.

If you test positive before your next period, it’s more likely you have a baby coming. On the other hand, a negative pregnancy test very soon after sex or well before your period is due is likely not accurate and should be repeated later.

There are different ways to test for pregnancy: either by using a urine or a blood sample. The latter will require visiting a hospital or lab for a test and it is usually more sensitive than the urine test. 

With many over-the-counter pregnancy strips in the market, you can test from the comfort of your bedroom. However, depending on when you test after intercourse, you may have a false result.

Generally, it takes some days for pregnancy to be detected on a urine strip and accuracy is less than a blood test early on. Blood pregnancy tests can often detect pregnancy a few days earlier than urine tests (around 11 days after conception for blood and 12–14 days for urine). 

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How soon after sex can I take a pregnancy test?

How soon you can take a pregnancy test depends on when you had sexual intercourse and the sensitivity of the test strip available.

However, most over-the-counter test strips will be more accurate from about 14 days after unprotected intercourse or from the first day of a missed period. This may vary from woman to woman depending on the length of your menstrual cycle, when you had intercourse in relation to ovulation, or if you used an emergency contraception after intercourse. Cleveland Clinic+1

The menstrual cycle is the number of days between your periods. This means that if your period started on July 1st and you had another period on the 28th of July, then you have a 28-day cycle.

It’s important that you chart the first day of your period over several months. This helps you identify if your menstrual cycle is regular or not.

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My menstrual cycle is regular, when can I test for pregnancy?

If your menstrual cycle is regular, it means you can easily predict your next period and ovulation.

Between 2 periods, a woman is more likely to conceive if unprotected intercourse occurs during her ovulation period.

Your ovulation period is six days within which you can get pregnant — five days before ovulation and a day on or just after ovulation. Clue

There are different ways you can tell when you are ovulating. During ovulation period, your usual sticky or thick discharge becomes watery, stretchy and egg-white. This usually occurs some days before ovulation.

Another sign you’re in your fertile period is your urge to have intercourse. During your fertile period, estrogen hormone pushes your nerves for increased sexual desire. This usually occurs about a week after your period ends (in many women, but not all).

Other ways you could tell if you’re in your ovulation period are light vaginal spotting two weeks before your next period, low abdomen pain that is more on one side of your abdomen, and breast pain.

If you’ve had sexual intercourse during your ovulation period, it easily increases the chances of your man’s sperm to fertilize your egg.

Anatomically, the uterus is made up of different parts:
The body – which houses the embryo during pregnancy,
The fallopian tubes – which connect the body of the uterus to the ovaries, and
The cervix.

Usually, fertilization occurs in the fallopian tubes and it takes about 6–10 days after ovulation for the embryo to be implanted into the body of the uterus (sometimes a bit earlier or later). coastalfertility.com+1

Implantation means pregnancy is now successful after the fertilized ovum burrows into the blood-thickened endometrium.

Signs of successful implantation or pregnancy are
– Brownish, pinkish, or black vaginal discharge that comes from your vagina few days before period
– Light, low abdomen cramps in your abdomen
– Feeling tired easily
– Vomiting and nausea
– Your breast gets heavy with pain
– Breast soreness
– Your nipple now itch
– You experience mood swing

You should know it’s possible for some women to have these symptoms while expecting their period. This guide explains the difference between pregnancy signs and period symptoms.

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What happens after implantation and when should I test for pregnancy?

After implantation occurs, your body will start secreting Human Chorionic Gonadotropin (HCG/hCG).

This hormone can be found in both your urine and blood if pregnant. In fact, if you’re planning on taking a blood test, this hormone may be detected a few days after implantation and sometimes several days before your next period, depending on the lab and your body. Cleveland Clinic+1

If you are planning on using a urine test kit, this may not be as sensitive; though it’s possible to detect pregnancy a few days before your next period with some early-response tests, most brands are most accurate from the day your period is due or later.

Using first-morning urine (more concentrated) gives the best chance of an accurate early result. (NHS – doing a pregnancy test) nhs.uk

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Can I test positive when am not pregnant?

There are different reasons your blood and urine test will come positive when you’re not pregnant. This can occur if:

1. You did not read the instructions on your strips before testing.

If you are yet to confirm pregnancy with a test strip, you should read the instruction to ensure the test is carried out the right way. Most test strips will confirm pregnancy in 3–5 minutes. If you read the test outside the recommended time window or use an expired test, it may cause a false positive or confusing test result. Wikipedia

2. You are currently trying to get pregnant and using fertility injections.

If you’re receiving injections to boost ovulation (for example, hCG trigger shots like Pregnyl), it is likely your test will come positive due to the hCG in the injection, even if you are not yet pregnant. Verywell Health+1

3. Certain medications or medical conditions.

Most common medicines (for example, antibiotics, painkillers, birth-control pills) do not affect pregnancy test results. However, some drugs, including high-dose methadone or some older anti-nausea/antipsychotic medicines, and rare medical conditions that produce hCG can occasionally interfere and give a false positive on some tests. If you are on long-term medication and get an unexpected positive result, talk to your doctor for a blood test and review. Wikipedia+1

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When can I test negative when am pregnant?

1. Pregnancy test was carried out too early

If you’ve taken a test very soon after intercourse, it will result in a negative pregnancy test. Remember that your HCG level will need to rise and be detected in these strips. If you test before implantation occurs or only a few days after, it will come negative.

On the other hand, it is possible that you will have symptoms of pregnancy and still test negative. This only means your HCG hormone is still low. It can happen sometimes and does not necessarily indicate you have a problem.

2. You are not using a sensitive pregnancy strip

Pregnancy test strip varies in sensitivity. If you do not use a very sensitive pregnancy strip, it’s likely you will get a false negative result, especially if you test before your period is due.

3. You did not follow instructions on your strip

If instructions are not met, you are likely to test negative. One standard instruction is to use a concentrated urine (early morning urine). If you are testing negative hours after taking lots of water, it will result in a false negative result. nhs.uk

If your period is more than one week late, and you still have negative tests or you feel unwell (severe pain, dizziness, very heavy bleeding), you should see a doctor to rule out ectopic pregnancy or other problems. (MedlinePlus – pregnancy test)

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Can you take a pregnancy test after a week of intercourse?

It’s possible you can test anytime after an unprotected intercourse; however, it most likely will be negative if done in a week’s time.

This is because it takes at least around 1–2 weeks from sex for ovulation, implantation, and a rise of HCG hormone to occur to a level that a urine test can detect. Therefore, if you are testing negative a week after intercourse, it still does not exclude pregnancy. MedlinePlus+1

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Can you take a pregnancy test two weeks after intercourse?

Yes, you can. Depending on when you had intercourse and the type of pregnancy test kit used, you may test positive if pregnant.

In fact, most pregnancy test strips will likely detect pregnancy about two weeks after ovulation or from the first day of a missed period. However, if you’ve had intercourse days before ovulation, it’s advisable you wait another week to confirm with a repeat test if your period has not come. Cleveland Clinic+1

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Can you take a pregnancy test 3 weeks after intercourse?

Yes surely. You will be more accurate at this time if the test comes out negative or positive.

By about 3 weeks after intercourse (and at least 1 week after a missed period), most home pregnancy tests should give a reliable result if used correctly. Cleveland Clinic+1

The best time to get a pregnancy test is a week after you missed your period.

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