How to Use an hCG Solution to Make a Pregnancy Test Positive

If you want to play a prank on a partner or a friend, you might be thinking about showing them a fake pregnancy test that shows you're pregnant. Because home pregnancy tests are known for occasionally giving false positives, there are ways you can rig this that don't involve simply drawing a line on the test with a marker. Since home pregnancy tests measure hCG in urine, using an hCG solution might seem like a good option—but it's not quite as simple as that. Here, we've gathered answers to some of your most common questions about using hCG solution to make a pregnancy test positive, along with some other options you can try.