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Home Pregnancy Tests 101

Could you be pregnant? Before you race out to buy a home pregnancy test, learn about the major brands currently available and find out which one might be best for you.

How Home Pregnancy Tests (HPTs) Work 1 of 7
HPTs determine whether you are pregnant based on your level of the pregnancy hormone human chorionic gonadotrophin (hCG), which is released by the placenta and can be detected in your urine. Your body makes 25 miu (milli-international units) of hCG around 10 days after conception. If the test that you take is geared to detect an hCG level higher than what your body has produced, it may give you a false negative. Your test results can also be affected if you are taking certain medications — such as Pregnyl, Profasi, Pergonal, Humegon — that contain hCG. To ensure that your test is accurate, be sure to follow the directions carefully and wash your hands before you conduct the test. Use your first morning urine as a sample for optimal results.
AimStick Test Strip and Cassette 2 of 7
How it works: The AimStick HPT is available as a test strip or a test card. The strip must be submerged in a urine specimen for a minimum of five seconds. To use the card, you must drop four to five sample drops onto the circle target to achieve results.
When to take it: One day after you miss your period.
Reading the results: For both test formats, look for one line for a negative result (not pregnant) and two lines for a positive result (pregnant).
Result time: Within three to five minutes (both formats).
Medical interactions: Fertility medications (which contain the pregnancy hormone
hCG) may affect test results.
Detects 20 miu of hCG and greater.
Buy it:
5 AimStick Pregnancy Test Strips
Answer Quick & Simple 3 of 7
How it works: The Answer test uses a midstream stick design with an absorbent tip, which is placed in the urine stream for at least five seconds.
When to take it: As early as four days before you expect your period.
Reading the results: Look for one line for a negative result (not pregnant) and two lines for a positive result (pregnant).
Result time: Three to five minutes.
Medical interactions: Fertility medications may affect test results.
Detects 100 miu of hCG. Buy it: Answer Pregnancy Test
Clearblue Easy 4 of 7
How it works: The Clearblue Easy design employs a midstream test stick with an absorbent tip, which is placed in the urine stream for at least five seconds.
When to take it: As early as four days before your expected period. Reading the results: Clearblue Easy offers two test result window formats: a line test, which shows one line for negative, or not pregnant, and two lines for positive, or pregnant; and a digital test, which shows the words "pregnant" or "not pregnant" upon completion. Result time: Within three minutes. Medical interactions: Fertility drugs may affect test results. Detects 50 miu of hCG; Clearblue Easy tests available in the UK detect 25 miu of hCG.Buy It: Clearblue Easy Digital Pregnancy Test
e.p.t. 5 of 7
How it works: This test uses a basic midstream stick design with an absorbent tip, which is placed the urine stream for at least five seconds.
When to take it: Up to four days before you expect your period.
Reading the results: The e.p.t. test produces two test result window formats: a line test, which shows one line for negative, or not pregnant, and two lines for positive, or pregnant; and a digital test, which shows the words "pregnant" or "not pregnant" upon completion.
Result time: Two minutes.
Medical interactions: Use of medications with hCG and testing too soon after administration of fertility drugs may affect test results.
Detects 40 miu of hCG.
Buy it:
e.p.t. Pregnancy Test, 2-Count Boxes (Pack of 2)
Early Pregnancy Tests 6 of 7
How it works: You can buy these tests as either a test strip or a midstream test. To use the test strip, fill a container with urine and dip the strip into the cup for five minutes. For the midstream test, simply remove the cap and hold the stick in your urine stream for at least seven seconds.
When to take it: If you know your ovulation date, you may begin testing as early as seven to 10 days past ovulation.
Reading the results: To read the test results, look for one line for a negative (not pregnant) and two lines for a postive (pregnant).
Result time: For the test strip: five minutes; for the midstream test: two to five minutes.
Medical interactions: Fertility medications may affect test results.
Detects 20 miu of hCG.
Buy it: Early-Detection Pregnancy Tests: Pack of 5 Tests
First Response 7 of 7
How it works: A midstream test stick with an absorbent tip is placed in the urine stream for at least five seconds.
When to take it: Up to five days before you expect your period.
Reading the results: Positive (pregnant) result produces two pink lines; negative (not pregnant) result produces one pink line.
Result time: Within three minutes.
Medical interactions: Fertility medications may affect test results.
Detects 100 miu of hCG.
Buy It:
First Response Early Result Pregnancy Test (Pack of 3)
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