Toothpaste Pregnancy Test: How It Works, Result And Accuracy

A toothpaste pregnancy test is a traditional DIY test to know if you are pregnant. The popular belief is that if toothpaste reacts to urine, it indicates that you are pregnant. Although a cheap alternative to home pregnancy kits, the results cannot be guaranteed, and their accuracy is not scientifically proven.

Read this MomJunction post to learn about toothpaste pregnancy test, and how it is thought to work.

How Is The Toothpaste Pregnancy Test Done?

This DIY test does not need any elaborate preparation. You may need a sample of urine, the usual white toothpaste, and a small cup to check the reaction.

  • Squeeze some toothpaste into an empty cup.
  • Collect urine in a separate cup, and slowly add a few drops into the cup containing the toothpaste.
  • Wait to see the reaction.
  • If the toothpaste changes in color, or fizzes, it is believed that you are pregnant.

How Does The Toothpaste Pregnancy Test Work?

Experts have their doubts about the test’s validity and believe that the ingredients in the toothpaste react with hCG pregnancy hormone in the urine. It is likely to work similar to a regular pregnancy test.

Theoretically, any reaction that combines urine and toothpaste may give out foam because of the acidic nature of the urine. And it may not be the hCG in the urine. To find if the result is because of the hCG, you may ask your partner to try it too. If there is no such reaction, you might take it as a positive test. However, you can only confirm it through a pregnancy test kit or a blood test in the hospital.

Toothpaste contains calcium carbonate, which on reaction with acidic urine, gives out carbon dioxide that foams. The more acidic the urine, the higher the fizz.

The urine pH is typically acidic and ranges between < 6.0 to 7.5. The toothpaste’s acidity ranges from very acidic to very basic. The results of toothpaste pregnancy test depend on the pH levels of urine and toothpaste involved.

bHCG is produced from placenta cells after fertilization but small quantities are produced from other parts of the body like pituitary gland, liver, colon and tumors. After conception the amount of bHCG increases gradually.

You can only back it up with a home pregnancy test kit.

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