How do pregnancy tests work?

pregnancy test

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Pregnancy tests are an easy and accurate way to find out if you’re pregnant – you just pee on a stick. They are inexpensive and available at Chemists and most superstores.

How accurate are pregnancy tests?

Pregnancy tests are very accurate when you use them correctly. The pregnancy tests you get at the Chemists work 99 out of 100 times. They’re just as accurate as a urine pregnancy test that you’d get at your Health Centre.

Pregnancy tests work by checking your urine for a hormone called human chorionic gonadotropin (HCG).  Your body only makes this hormone if you’re pregnant. HCG is released when a fertilized egg attaches to the lining of your uterus .If your pregnancy test results are positive, it means you’re pregnant. If they’re negative, it means you’re not pregnant.

pregnancy test

Accurate Pregnancy Tests

Pregnancy tests are most accurate when you take them after you’ve already missed your period, with the first pee of the day

A pregnancy test will be less accurate if it’s expired or if you don’t use it the right way. So always check the expiration date on the package, and carefully read the directions that come with your pregnancy test.

How soon can I take a pregnancy test?

You can take a pregnancy test anytime after your period is late that’s when they work the best. It’s a good idea to take a pregnancy test as soon as possible if you miss your period or think you might be pregnant. The earlier you know you’re pregnant, the sooner you can start thinking about your care..

Many pregnancy tests say they work a few days before a missed period, but the results are usually less accurate then. Read the label on your pregnancy test to find out when to take a pregnancy test and how accurate it’ll be.

Sometimes a pregnancy test is able to find pregnancy hormones in your urine as early as 10 days after unprotected sex. But these results aren’t super reliable, and you may get a false positive or false negative test result.

If your periods are very irregular, or you don’t get periods at all for one reason or another, your best bet for accurate results is to take a pregnancy test 3 weeks after sex.

Don’t worry about your due date, this will be confirmed by an Ultrasound scan Your 12 wk Dating scan, takes measurements of baby to predict due date.