If A Pregnancy Test Is Negative Today Can It Be Positive Tomorrow
After getting a negative result on a home pregnancy test, it's fair to conclude that you're not pregnant. However, if you happen to glance back at the test later in the day, you may be surprised to see that a positive line has magically appeared. There are a few reasons why this can happen.
Can a pregnancy test be negative one day and positive the next?
One explanation for a false negative pregnancy test is what's called the hook effect. It's not common but sometimes this effect leads to urine and blood tests giving the wrong result. This error might happen even after you've had one positive pregnancy test and test again a couple days later.
Hook Effect: Pregnancy Test False-Negative Causes and Meaning
Has anyone had a negative pregnancy test then a positive?
One possibility is that you ovulated later in your cycle than you thought and took the test too early to get a positive result. Don't assume that one negative result means you're not pregnant. The amount of hCG produced is different for every woman and varies with each pregnancy.
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