How Long Should You Wait To Take a Pregnancy Test?

Sometimes, pregnancy tests can give you the wrong result because of bad timing. Should you wait to take a pregnancy test for better results?

Share This Post

The results from a pregnancy test are — to say the least — life-changing. 

If you take a pregnancy test just a few days after unprotected sex and receive a negative result, you may think you’re in the clear.

Conversely, if you’re trying for a baby and test negative the week after unprotected sex, you may find you’re checking your ovulation tracker because you were sure you had the dates right. 

Not so fast. Sometimes, pregnancy tests can give you a false negative result — which says you’re not pregnant even though you really are.

If you think that your pregnancy test mistakenly gave you a negative result because you tested too soon, keep reading this guide from USA Rx to discover how soon you should test again. 

How Does a Pregnancy Test Work?

Before we discuss how long you should wait to take a pregnancy test, let’s go over how a pregnancy test works in the first place.

Essentially, an over-the-counter home pregnancy test checks your urine stream for human chorionic gonadotropin (hCG).

This is a hormone that pregnant women produce in high amounts to thicken the uterine lining and prepare it to carry a baby for nine months. 

HCG begins to increase in urine about a week after conception — when a fertilized egg implants itself in the uterine lining.

Home pregnancy tests measure this increase by indicating high hCG levels in the urine, which is why test instructions either have you put the test stick directly into your urine stream or have you dip the test stick into a small cup of your urine.

how long should you wait to take a pregnancy test

A higher-than-normal amount of hCG will produce a color change in the testing strip, usually showing up as a second faint line or a plus sign on the display. If you’re not pregnant, there are generally no changes to the display at all.

False positive pregnancy tests have been known to occur in people who have experienced a recent pregnancy loss (miscarriage), are currently experiencing an ectopic pregnancy, or recently took a fertility drug containing hCG. 

However, the vast majority of positive results are accurate — it’s the false negative results that can be misleading depending on when you take the test after unprotected sex. 

How Soon Can You Take a Pregnancy Test?

If you’ve successfully conceived, you need to give your body time to build up the hormone hCG — otherwise, a pregnancy urine test won’t be able to detect it.

Even though early pregnancy tests exist, they are not always accurate since hCG levels are not always high enough to detect in the earliest stages of gestation.

The earliest possible time to consider taking a pregnancy test is about one week after conception. Of course, depending on your body, hCG levels may or may not be detectable by that point.

Home pregnancy tests are evaluated by the Food and Drug Administration (FDA) to be as accurate as possible.

That said, the tests are most accurate when you take them after the first day of your missed expected period.

If you have an irregular menstrual cycle, you can add 30 days to the last day of your most recent cycle and take a pregnancy test after that day.

If you’re taking an early detection pregnancy test, you can use it as soon as 10 days after conception for fairly accurate results.

Always follow the instructions on the pregnancy test kit for when exactly you should take it. When in doubt, make sure to consult your obstetrics-gynecology provider, i.e. your OBGYN.

What Happens If You Test Too Early?

Many at-home pregnancy tests advertise that you can take them up to a week before your first missed period.

However, for some women, this may not be enough time to build up detectable levels of hCG, resulting in a false negative test result. 

Testing too early can lead to disappointment if you’re trying to get pregnant.

Plus, there’s the issue of spending money on a pregnancy test just to have to buy another one. 

Another problem with testing too early is that some women may think that they’re not pregnant, either resulting in a desperate search for other causes behind a missed period, or the potential to miss out on prenatal care, which is especially important in early pregnancy. 

All in all, it’s better to wait until you miss your period before you take a pregnancy test.

Doing otherwise can lead to disappointment, time and effort put into the wrong resources, and even missing weeks or months of prenatal care. 

How Long Should You Wait To Take a Pregnancy Test Again?

If you received negative pregnancy test results, you may feel disappointed and think you need to keep trying to get pregnant.

But if you’re actually pregnant, your body may tell you otherwise with early signs of pregnancy like morning sickness and breast tenderness. 

The main reason you may have gotten a false negative is that you took the test too early. While some women may produce a lot of hCG early on, others may need more time for this hormone to build up in their urine. 

You may have also gotten a false negative result for other reasons. For instance, drinking too much water right before testing can dilute hCG levels in your urine, which can make them undetectable by at-home pregnancy tests.

Likewise, if you didn’t follow the test instructions (such as exactly where to place the urine or how to orient the test stick while it processes results), you may also have a false negative. 

If you think you got a false negative test result, you should take another pregnancy test. However, there is such a thing as taking a pregnancy test too many times. 

If you waited until your first missed period and followed all the instructions on the test but still got a negative result, then it’s very likely that you’re not pregnant. 

If you continue to experience classic symptoms of pregnancy, then you should see a healthcare provider for a blood test.

Blood tests are usually more sensitive than urine tests and tend to pick up on lower levels of hCG in the body.

After your second or third pregnancy test, it’s best to give it a rest. Schedule an appointment with a healthcare professional to rule out any unusual conditions and avoid taking another at-home pregnancy test. 

Seeing yet another negative pregnancy test can be tough if you’re trying for a pregnancy. It’s best to stay as stress-free as possible — especially as you’re trying to conceive.

In Conclusion

When taking an initial pregnancy test, it’s best to wait until after your first missed period. 

If you get a negative test result that you think is false, you can take another test within a few days.

Just make sure to follow all of the instructions, and avoid drinking too much water the hour or two before testing. 

If you get another negative result, make an appointment with your doctor for a blood test.

These tend to be more sensitive, meaning they might pick up on pregnancy when at-home tests weren’t able to. 

References and Sources:

Human Chorionic Gonadotropin: The Pregnancy Hormone and More | PMC 

The Role of Prenatal Care in Preventing Low Birth Weight | JSTOR 

False Negative Point‐of‐Care Urine Pregnancy Tests in an Urban Academic Emergency Department: A Retrospective Cohort Study | PMC 

Sesame Care

Find the best price for great doctors and specialists

  • Thousands of doctors and specialists
  • $13,000,000+ saved by patients
  • 95% patient satisfaction
  • 4.3 on TrustPilot
     

Popular Destinations

Health

Medication

Telehealth Reviews

Shop

Pharmacist Membership

About Us

Pharmacy Near Me

Recent Articles

Minoxidil

Minoxidil is a vasodilator that relaxes (widens) blood vessels and improves blood flow.

Minoxidil is used to treat severely high blood pressure (hypertension) that is causing symptoms or damaging your vital organs. Minoxidil is usually given together with two other medicines to help prevent serious side effects.

Minoxidil tablets should not be used to promote scalp hair growth. Only the topical form of minoxidil (Rogaine) is recommended for that use.

Read More »

Share On:

Subscribe To Our Newsletter

Get updates and learn from the best

More To Explore

What Is a Chemical Pregnancy and Can You Treat It?

A chemical pregnancy occurs when an embryo stops developing in the first five weeks of pregnancy. There is no medical treatment for chemical pregnancy.

Implantation Bleeding: What It Is, When Does It Happen & How Long Does It Last?

Implantation bleeding is a very common occurrence after the fertilization of an egg in the uterus. It happens when the egg attaches to the

What Can Cause a False Negative Pregnancy Test?

Taking the test too early, diluted hCG levels, and more can contribute to a false negative pregnancy test result. Here’s what to know.

Pregnancy Acne: What Causes It, How To Alleviate It

Acne during pregnancy is common, but many treatments exist to treat it. Read on to learn why you may have acne and what you

Pregnancy Itching: Is It Normal?

Itching can be a normal part of any pregnancy, but when itching drives you crazy, it could indicate a bigger problem. Here’s what you

When Ectopic Pregnancy Symptoms Start & Early Signs

An ectopic pregnancy is a life-threatening condition that requires emergency treatment.

Back Pain During Pregnancy: Symptoms, Causes and Remedies

An aching back doesn’t make pregnancy very comfortable. Find out what’s causing it and how you can get much-needed relief. 

Irregular Periods and Pregnancy: What To Know

Having an irregular period can cause you to have cycles that aren’t consistent from month to month. Find out how they can affect getting

How Many Weeks Is Full-Term Pregnancy?

Carrying a baby to full-term is associated with many health benefits. This guide from USA Rx

What Does a Positive Pregnancy Test Look Like?

Each pregnancy test is different. This guide from USA Rx helps you figure out how to tell a positive pregnancy test from a negative

Pre and Post Natal Care: The Ultimate Guide

Any healthy pregnancy requires the right prenatal and post-natal care. This guide from USA Rx breaks down why it’s so important and what it

What Are the Most Common Signs of Fertility in Women?

In this article, we will discuss the most common signs of ovulation in women and also explain how to know when you are most

Where To Buy Pregnancy Tester: 7 Reliable Places

Pregnancy testers are available at your local pharmacy, grocery store, drug store, Planned Parenthood Health Center, local medical provider, and community clinics.

Prenatal Massage: A Beginner’s Guide

Prenatal massage can be a great way to improve pregnancy and labor outcomes. This guide from

Seven Tips To Face Depression During Pregnancy

Feelings of sadness are common with pregnancy, but if they last longer than you expect, you might be suffering from perinatal depression. 

What Does Pregnancy Spotting Look Like & Is it Safe

In most cases, pregnancy spotting isn’t a cause for concern. This guide from USA Rx goes over what normal spotting looks like.

Spotting and Bleeding in the First Trimester: What Is Normal?

Bleeding during pregnancy can be scary, but it’s likely not a cause for concern. Read on to see what’s normal and when to call

When Does Constipation Start in Pregnancy?

Constipation is an uncomfortable symptom of pregnancy. This guide from USA Rx breaks down what causes it and how you can prevent it. 

10 Signs That Labor Is 24 to 48 Hours Away

If you are pregnant, you may be wondering what signs to look for to determine when labor is imminent. Many pregnant women will go

Pre Natal Education: Why Is It Important?

Prenatal education has many benefits for parents, such as increased confidence during childbirth and a better chance of a healthy pregnancy.