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Pregnancy tests are how a person finds out if they’re pregnant. Most people take a pregnancy test at home using their pee. However, you can also take a pregnancy test at your provider’s office using a blood sample or pee. For the most accurate results, wait until you miss your period to take a home pregnancy test. If you use pregnancy tests correctly, the results are 99% accurate.
About two weeks after your last period (smack in the middle of a “typical” 28-day cycle) is when you ovulate. That means your ovary has released an egg and it’s hanging around in your fallopian tube waiting for sperm. If the egg isn’t fertilized, it’ll be reabsorbed by your body. You could start taking pregnancy tests 10 days after conception, but taking a pregnancy test too early may give you a negative result—even if you are pregnant. If you take a urine pregnancy test sooner than 10 days after conception, the tests might give a “false negative” result. If you take an early test and it's negative, you should continue to test if you miss a period.
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Your provider might also choose to use a blood test to compare HCG levels during the pregnancy. Your HCG levels usually double about every two days during the first few weeks of pregnancy. If the levels don’t rise, it might suggest a problem with the pregnancy. Extremely high HCG levels might mean that you’re carrying twins or that there’s an issue with the pregnancy.
You can also download the company’s free app, which helps simplify tracking your cycle. Levels of hCG rise rapidly in early pregnancy, and this is what home pregnancy tests are checking for. If negative and still no period would repeat HPT in a week.
Don’t Miss These Early Signs of Pregnancy
And some women will have produced enough hCG to get a positive result at that point. The best way to tell if a test is sensitive enough to pick up the smaller amounts is to read the fine print. Some urine pregnancy tests can detect lower levels of hCG. For the most accurate results, we recommend testing in the morning on the day you expect your period to start. This allows for variability in the timing of ovulation, fertilization, and implantation.
A missed period typically happens around 14 days after conception. As the placenta grows, the amount of hCG in your body doubles every two days or so during the first few weeks. When hCG levels are high enough, the hormone enters the bloodstream. That's when it starts to show up in the blood and urine.
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It takes longer to get results from a quantitative blood test, though. Some women take more than one home pregnancy test just to be sure – but that's not really necessary. One negative result doesn't necessarily mean you're not pregnant. Every woman produces different amounts of hCG and it's not even the same for each pregnancy. You continue to get negative test results, but your period doesn't begin or you still think you might be pregnant. Many factors can lead to missed menstrual periods , including thyroid disorders, low body weight, problems with your ovaries, excessive exercise and stress.
Without getting all “birds and the bees” about it, there are several steps that go on in your body to create new life. A quick look at these different phases will help to better understand when pregnancy actually happens and when it can be detected. Having counseled over 100,000 women, we have learned that external pressure from circumstances and people is the leading cause for abortion decisions.
Pregnancy Test Timing
After implantation, hCG levels start doubling roughly every 48 hours. Baseline hCG levels, early pregnancy hCG levels, and hCG doubling time vary from woman to woman and from pregnancy to pregnancy. Along with the date of implantation, these factors will influence how early you can get a positive pregnancy test. A negative result means hCG wasn't found in your sample, so you may not be pregnant.
This type of pregnancy test is done using a small sample of blood from a vein in your arm. This blood test not only detects whether the pregnancy hormone is in your body, but can also determine how much of the hormone is present. This is helpful for when your provider needs to know the exact amount of HCG in your blood, not just if there’s HCG in your blood.
Advances in home pregnancy tests give women greater insight into what’s going on in their bodies sooner than ever before. No matter what your childbearing plans might be, it’s essential to get quick, accurate results at home to plan your next steps accordingly. Many home pregnancy tests available today are midstream urine dip tests, which are the traditional “pee-on-a-stick” tests and are fairly easy to use. There also are tests in which you pee into a cup and dip a test strip into the urine. The New York Times published a story ranking the best home pregnancy tests, citing a midstream test with an ergonomic grip as the easiest to use and most accurate.
If you get a negative result on a test that your provider does, ask your provider if you need another test. This may be the case if you experience a chemical pregnancy or lose the pregnancy shortly after the fertilized egg attaches to your uterine wall. Pregnancy tests work by reacting to the amount of HCG in either your pee or blood. In a urine test, a piece of reactive paper detects the HCG.
False results — either a false negative or a false positive — mainly happen due to using the test incorrectly. The main reason for a false-negative is testing too early. You might also get a false-negative if you use a home test incorrectly, such as using too much or too little pee. It’s important to follow the directions on your test kit to make sure you get an accurate result. Blood tests are rarely done because they’re expensive and tend to have the same result as a urine test.
Most home pregnancy tests can detect pregnancy after a missed period, though some can detect it a few days before a missed period. Pregnancy actually doesn’t start the day a couple has intercourse. It can take up to six days after sex for the sperm and egg to join and form a fertilized egg. It then takes another six days for the fertilized egg to implant itself into the lining of the uterus to start a pregnancy. Ancient Egyptians relied on a form of urine testing to determine pregnancy status way back in 1350 BCE. A woman urinated daily on wheat or barley seeds and if the plants grew, it meant she was pregnant.
Check out our overview of counseling services and choose a test that addresses your needs. All our services are free, anonymous, and confidential. Maybe you feel too afraid to take the test, or you already have a surprise positive test and wonder how to manage and where to turn for support. Around the 10th week of pregnancy, the concentration of ß-hCG is at its highest. A pregnancy test performed at this time is most reliable. If you are tempted to take a test before your period is late, consider the pros and cons before you do.
Keep in mind that different brands of tests will take different amounts of time to show a result. At that first prenatal appointment, expect that your healthcare provider will perform tests, like an ultrasound, to confirm your pregnancy is progressing normally. Most early pregnancy symptoms don’t appear until around eight weeks after the first day of your last period, though sometimes, they can come on earlier. For some people, some symptoms may appear right around the time you miss your period. Pregnancy tests, including home tests and blood tests taken at a doctor’s office, measure hCG levels to detect pregnancy. Those levels will rise quickly and continue to rise throughout the first two to three months of your pregnancy.
