When You Should Get A Pregnancy Blood Test
A pregnancy blood test at your doctors office is another way to confirm a pregnancy.
The blood test can detect the pregnancy earlier than an at-home urine test eight days after ovulation is the earliest a blood test could detect a pregnancy, says Dr. Merhi.
Should you receive a positive at-home pregnancy test result, your doctor will often perform an in-office blood test to confirm the presence of HCG. This and additional blood tests also provide additional information about your health and the health of your pregnancy.
Blood tests are also needed to check for complications of pregnancyfor instance, if you are at risk for ectopic pregnancy , miscarriage or an abnormally progressing pregnancy, says Dr. Culwell. because they can measure whether your pregnancy hormone levels are progressing normally or decreasing.
Should you experience a miscarriage, HCG can remain in your body for a few weeks, and additional tests taken in the weeks following can lead to a false-positive result, says Dr. Merhi.
Is It Possible To Get A False Negative Pregnancy Test Result
Yes. The most common cause of a false negative result is performing the test too soon after conception, when hCG levels are too low to be detected. If your ovulation happens later than usual, this means that the first day of a missed period can be too early to get an accurate result .
Waiting a week or two after a missed period before performing a urine pregnancy test will minimize the chance of getting a false negative.
Rarely, false negative results can be caused by very high hCG levels associated with pregnancy-related tumors.
When Is The Best Time To Take A Pregnancy Test
You can take a pregnancy test any time of the day. But if theres a chance youre early in pregnancy, take it in the morning when your urine is most concentrated so the test can more easily detect the HCG hormone, says Dr. Culwell.
The best time in the cycle to take a test would be after you have missed a period, says Dr. Culwell. This will make it less likely that you might miss an early pregnancy if the HCG levels are too low to be picked up by the test.
Read Also: Can I Use Vagisil Wash While Pregnant
Also Check: Tips For When Your On Your Period
You Were Pregnant: Early Pregnancy Loss
A faint positive line can also be a sign of a very early miscarriage, sometimes called a chemical pregnancy, which occurs within the first 12 weeks of a pregnancy, often much earlier.
If you take a home pregnancy test after a miscarriage, your test may reveal a faint positive line. This is because your body may have residual pregnancy hormone in its system, although youre no longer expecting.
You may experience bleeding that resembles your menstrual cycle and light cramping. Bleeding can occur around the time when you expect your next period, so you may never know of the early miscarriage.
But if you take a home pregnancy test while bleeding and the results show a faint positive line, you may have had a pregnancy loss.
Theres no specific treatment, but you can talk with your doctor if you suspect a miscarriage.
Early pregnancy losses are not uncommon and occur in about 50 to 75 percent of all miscarriages. These miscarriages are often due to abnormalities in a fertilized egg.
The good news is that women who have had a very early pregnancy loss dont necessarily have problems conceiving at a later time. Many women eventually have healthy babies.
/5when To Take A Blood Pregnancy Test
What you can also do is take blood pregnancy tests, especially if you have been getting a lot of negatives on your home pregnancy tests but have reason to believe that you are pregnant. While home pregnancy tests measure the levels of hCG hormones, blood pregnancy tests are far more sensitive, accurate and check for hCG levels in the blood. Again, a good time to take a test would be several days late.
Blood pregnancy tests can also be a good option to consider for women who have experienced miscarriage, pregnancy complications or health risks in the past. This way, the most crucial first weeks of your pregnancy will be closely observed.
Read Also: Skipping Your Period On The Pill
If You Have A Regular Menstrual Cycle
Sperm exposure poses the highest risk of pregnancy from around the middle of the cycle to about 2 weeks before your anticipated period, because this is when most people ovulate. This is only true in general, and it might not be reflective of any given cycle, so you shouldnât rely on this rough estimate for pregnancy prevention.
Sperm exposure towards the beginning or the end of the cycle in general poses less risk of pregnancy, because itâs less likely that a person ovulated close to or during those times.
You should take a pregnancy test or contact your healthcare provider if your period is more than 9 days late.
Track the timing of your periods and sexual activity in Clue.
If your cycle tends to be quite “regular” and you want to take a pregnancy test sooner, itâs generally recommended you wait at least two weeks after your estimated ovulation day, or around when you expect to get your period. Some pregnancy tests advertise that you can take them earlier than that, but there can be a higher likelihood of a false negative . To avoid a false negative, itâs best to wait a few days after your expected period. Itâs up to you if you want to take it sooner.
What Happens If You Take A Pregnancy Test Too Early
Remember that hCG levels increase rapidly after implantation, which is when a fertilized egg attaches to the uterine lining. Completed implantation is a slow process that can take up to two weeks. If youre pregnant, but try to test before implantation happens, your hCG levels will still be too low to produce a positive result.
You May Like: Can You Ovulate During Your Period
Where Can I Get A Pregnancy Test
You can buy a pregnancy test at your local pharmacy, drugstore, grocery store, and some convenience or dollar stores. Pregnancy tests are usually inexpensive they can cost as little as a dollar. Sometimes you can get a free pregnancy test at certain health centers.
You can also get a pregnancy test from your nurse or doctor, community clinic, or local Planned Parenthood Health Center. Most health centers use the same urine pregnancy tests that you can buy in stores. Sometimes they use a blood test to test for pregnancy, but thats usually only under special circumstances.
But be careful when looking for a reliable health center, because there are fake clinics out there called Crisis Pregnancy Centers. Crisis Pregnancy Centers give free pregnancy tests and claim to offer information and help. But theyre run by people who may not be medical professionals, and dont believe in giving you honest facts about pregnancy and all of your options. Crisis pregnancy centers are often located very close to Planned Parenthood health centers or other real medical centers, and have similar names they do this to confuse people and trick them into visiting their center instead.
Your nearest Planned Parenthood health center can help you find a safe place to get a pregnancy test in your area.
Also Check: Can Starting Birth Control Make Your Period Late
The Best Time Of Day To Take A Pregnancy Test
The time of day you take a pregnancy test does matter to a certain extent. Youre more likely to get an accurate result if you take the test in the morning. This is especially true if your period is not yet late, or if your period is only a couple days late.
At-home pregnancy tests work by detecting the hormone human chorionic gonadotropin in your urine. Unless you get up in the night to pee often , your urine is more concentrated when you first wake up. This usually means that the amount of hCG is a bit higher, and youre more likely to get a positive result if youre pregnant.
However, you can still take a pregnancy test in the middle of the day, or even at night. Youre just more likely to get a false negative, especially if your period isnt that late, and especially if youve been drinking a lot of water and your urine is diluted.
You May Like: How To Remove Period Stain From Bed
Can Any Medication Or Medical Conditions Affect The Result
Testing too soon after using fertility drugs that contain hCG can give misleading results. If you have recently stopped taking hormonal contraception or are using fertility treatments such as clomiphene citrate, your periods may be irregular leading you to test too early.
If you have recently been pregnant you may get a false pregnant result. Ectopic pregnancy, ovarian cysts, menopause and some very rare medical conditions may give misleading results.
If you have a pregnant result it is possible that you later find that you are not pregnant due to loss of the pregnancy in the early stages. Some women who are more than 6 weeks pregnant may get misleading results due to high hCG levels .
If you get unexpected results you should talk about them with your doctor.
How Accurate Are Pregnancy Blood Tests
A blood test to detect pregnancy is about 99% accurate as this test can detect smaller amounts of hCG than a urine pregnancy testPregnancy Testing. Better Health Channel. Accessed 7/20/2022. .
You May Also Be Interested In Products For Pregnancy From Our Featured Partner
Ritual Essential Prenatal Multivitamin
Also Check: Birth Control That Takes Away Periods
A Quick Refresher On The Science Of Pregnancy Tests
The most surefire way to confirm a pregnancy is through a blood test or ultrasound done at a doctors office. But before visiting the clinic, at-home pregnancy tests can give you answers with about 99% accuracy .
How exactly do these tiny sticks detect a pregnancy? It has everything to do with the level of hCG in your urine.
Here’s what you need to know about hCG:
- When a fertilized egg implants into the uterine lining, the body starts ramping up production of hCG increasing by roughly 50% every day during the early stages of pregnancy in order to nourish the developing embryo.
- Urine-based pregnancy tests compare the levels of hCG in your urine to a predetermined hCG threshold that indicates pregnancy.
- For a positive result, urine generally needs to have about 20 mIU/mL of hCG. Urine that contains anything less than 5 mIU/mL of hCG will show as negative.
When To Get A Blood Pregnancy Test
You might be wondering if you should also have a blood test to check if you are pregnant. Your doctor may order a test, or you may be thinking about ordering one yourself. Many labs now allow people to order and pay out of pocket for their blood work.
Before you do that, there are a few things you should know. First, there are two types of pregnancy blood tests: qualitative and quantitative.
- Qualitative tests measure whether hCG is present in your blood or urine. They pretty much give a yes or no answer as to whether youre pregnant. Or, more accurately, whether you have enough pregnancy hormone to get a positive result. Home pregnancy tests are qualitative.
- Quantitative pregnancy tests measure the amount of pregnancy hormone in your blood. This is sometimes called a beta hCG test. These are usually done to see how a pregnancy is progressing. For example, your doctor may order two beta hCG tests a few days apart to see whether the level of hCG is increasing as expected or not. This might be important if you had trouble conceiving, have a history of early miscarriage, or an ectopic pregnancy is suspected.
Recommended Reading: Does Your Period Stop In Water
What Do I Do If My Test Is Negative
You may not be pregnant or the level of hCG may not yet be high enough to be detected or you may have miscalculated the day your period was due. If you tested early, test again in 48 hours with a new test. If your period is overdue, test again in 72 hours with a new test. If this retest gives you a not pregnant result and you have still not had your period, see your doctor
What Should I Do If My Pregnancy Test Is Positive
If you take a pregnancy test after you miss your period and the result is positive, that means youre pregnant. You can always take another test to be sure, if you want.
You may want to go to a nurse or doctor, family planning clinic, or local Planned Parenthood Health Center to get a follow-up test. Theyll talk with you about your pregnancy options, and help get you the care you need. Be careful not to visit a Crisis Pregnancy Center, because they might not give you real medical care or truthful information about your pregnancy and all of your options.
Read Also: Reasons For Having A Late Period
What Is A Chemical Pregnancy
A chemical pregnancy refers to a miscarriage happening even before implantation. A pregnancy test may turn positive because of the hormones present in the body.
A missed period may follow, but in the real sense, there is no evidence of pregnancy as per the ultrasound. A chemical pregnancy bleeding will then occur almost the same time as your period which may confuse you.
You May Like: Can You Get Pregnant The Day Your Period Ends
What Is The Best Time To Take Pregnancy Test
Morning is considered the perfect time to take the pregnancy test. This time is best especially if your period is not late or if its late by just a couple of days.
A home pregnancy test works by detecting the hCG hormone in your urine. Unless you get up in the night and pee often or drink water throughout the night, your urine is more concentrated in the morning when you wake up.
This means that the amount of hCG is a bit more, and you are likely to get a pregnancy positive result if you are pregnant.
However, you can take the pregnancy test any time of the day be it the middle of the day or night. In this scenario, you are more likely to get a false negative result, especially if your period is not that late or if you have consumed a lot of water and your urine is diluted.
Don’t Miss: How To Get Rid Of Teenage Period Cramps
What Should I Consider When Buying A Pregnancy Test
- Cost. Home pregnancy tests come in many different types. Most stores sell them over the counter . The cost varies depending on the brand and how many tests come in the box.
- Accuracy. Most tests can be taken as soon as you miss your period. Some newer, more expensive tests say they can be used 4 or 5 days before your period. Even so, they claim the best accuracy only after the date of your expected period.
Pregnancy Test How Long To Wait
A pregnancy test measures the amount of a hormone called human chorionic gonadotropin in your urine. hCG is produced when a fertilized egg attaches to the wall of the uterus. The amount of hCG in your urine doubles every two to three days in early pregnancy. Most pregnancy tests can detect hCG levels as low as 25 mIU/ml.
To ensure the accuracy of your pregnancy test, you should wait until at least the first day of your missed period to take the test. If you test too early, you may get a false negative result because not enough of the hCG hormone has been produced yet. If you test too late, you may get a false positive result because the hCG level may start to decline after the eighth week of pregnancy.
Don’t Miss: Pills To Delay Period Over The Counter Usa
Whats The Difference Between Home Pregnancy Tests And The Tests At A Doctors Office
The main hormone you are testing for is human chorionic gonadotropin , which is detectable in blood or urine. The concentration of hCG doubles every 29 to 53 hours during the first 30 days after implantation of a viable, intrauterine pregnancy a slower rise in concentration of hCG is suggestive of an abnormal pregnancy or early miscarriage .
The âpee on a stickâ type of home test measures whether your hCG passes a threshold amount, and gives you a positive or negative answer. These tests often give a negative result if the test is done too early after a missed period.
If you do a home pregnancy test and get a negative resultâââbut you still donât get your period one week laterâââthen itâs a good idea to follow-up with another test.
Healthcare providers often offer both urine tests and blood tests for hCG. The urine test offered is very similar to a home pregnancy test, but the results tend to be more accurate due to reduced error. A blood test will give you a precise count of your hCG levels. Because the blood needs to be analyzed by a lab, you will need to wait longer to find out the results.
When To Take A Pregnancy Test If You Have Pcos
If your menstrual period comes rarely or not at all, you may have the medical condition polycystic ovary syndrome . For women with PCOS who are sexually active or trying to get pregnant, waiting until you get your period or not becomes a guessing game. It also makes it difficult to know when you should take a pregnancy test.
This article will discuss when to take a pregnancy test if you have PCOS. It will talk about how irregular menstrual periods can make it difficult to determine whether you are pregnant or not.
Also Check: Vagisil Pregnant
You May Like: Can You Be On Your Period And Not Bleed