How does a home kit tell you that you’re pregnant? How do these things work?
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Akshay Rowland
Answered: 2018-12-12 05:39:12
They measure the levels of a hormone called HCG in your urine, the levels of it change in pregnant women, this is how these tests determine if you are pregnant.
I know, a simple stick – it’s crazy. But there’s something in your urine that they respond to, only if you actually are pregnant. A human hormone. So if it is present, then you get that positive sign!
After the egg is fertilized your hormones go mad anywhere but there is one particular hormone – hcG, that the little stick is looking for. If it finds that – boom! You have an embryo and the test tells you so!
There’s a hormone called human chorionic gonadotropin – a mouthful I know, that comes out of the placenta when the egg has been fertilized. The tests specifically look for this and how much of this is in your urine, so they can detect if you are pregnant.