It could be due to testing too early. HCG levels might not be high enough to be detected yet. Sometimes the test kits or lab procedures have inaccuracies too.
One possible reason for a negative urine test and positive blood test could be the difference in sensitivity of the two tests. Urine tests may not detect certain substances or conditions as early or accurately as blood tests. For example, in early pregnancy, the hormone levels might be detectable in the blood before they show up in urine. Another instance could be in some diseases where the concentration of biomarkers is too low in urine to be detected but sufficient in blood.
One cause could be the time factor. Some substances are detected in the blood earlier than in the urine. For example, if a new disease marker is emerging in the body, the blood circulation will carry it first, and it might take a while for it to be excreted into the urine in sufficient amounts to be detected. So, at the time of testing, the blood test shows positive while the urine test is negative.
Well, there was a case where a lady got a negative result on her pregnancy test. However, she noticed her body changing in ways typical of early pregnancy, like breast tenderness. She decided to wait a week and retake the test. This time it was positive. The first false negative could have been due to testing too early. Hormone levels might not have been high enough for the test to detect at first.
One success story is that a young couple was really worried as they were not ready for a baby yet. When the pregnancy test came back negative, they were overjoyed. They could now focus on their careers and personal growth without the immediate pressure of starting a family. It was a huge relief for them.
The chapter of the Legend of Zhen Huan in the Harem, 6 Blood Test, can be found in the e-book Legend of Zhen Huan in the Harem. E-books could be found on various online reading platforms such as Qidian Chinese Network, Xiaoxiang Academy, etc. In the e-book, one could search for specific keywords to find the chapter of the novel 6 Blood Test. For example, you could enter keywords such as "Legend of Zhen Huan in the harem: 6 Blood Drop Matrimony Test" or "Legend of Zhen Huan in the harem: 6 Blood Drop Matrimony Test Chapter Name" to find the relevant chapter.
One horror story is when the phlebotomist couldn't find a vein easily. They kept poking around in my arm with the needle, it was extremely painful and left my arm bruised for days.
One negative impact is the promotion of inappropriate and unethical behavior. It can also lead to the objectification of women or the misrepresentation of relationships. Such stories are not in line with the values of a healthy society.
There are many cases. Consider a single mother who already had a lot on her plate. She was scared she might be pregnant again which would be a huge burden. When the test was negative, it was a success. It allowed her to focus on providing for and taking care of her existing child better. She could also start saving up money for her child's future education and other needs.