What Can Cause Pregnancy Test False Positive

The method of running a home pregnancy test is very simple. Once the egg is implanted in the uterus, your body begins to produce a series of hormones that will give rise to all the changes that the organism undergoes during this stage, besides allowing the development of the fetus. But this process is not immediate, in fact, it takes about 15 days from the implantation for the body to start producing the hormone hCG , which is generated in the placenta and has the function of contributing to the generation of progesterone and estrogen, the essential hormones during gestation. Home pregnancy tests detect through urine the presence of the hCG hormone, indicating whether or not you are pregnant.

When you perform the test without having a delay in menstruation or the day after having sex, the result will be negative because the hormone hCG will not yet be present in the blood. But this does not mean that you are not pregnant only that you have not done the test correctly, so this type of results are known as false negatives. However, there are cases in which some alterations in our organism can also give rise to pregnancy test false positive.

Consumption of Certain Medication

There are several types of medication that can cause a false positive in a pregnancy test if they are consumed in a medical treatment of frequent intake. Some examples are as follows;

• Certain diuretics
• Some tranquilizers
• Anticonvulsants
• Methadone
• Cannabinoids
• Chlorpromazine
• Phenothiazines
• Promethazine
• Medications for Parkinson’s

If you think you may be pregnant and are using any of these medicines, go to a gynecologist as soon as possible to confirm gestation and suspend, if necessary, the intake of the product.

Presence of Some Diseases

Certain diseases can produce an increase in the hCG hormone, which would be interpreted as a pregnancy test when actually being treated as a false positive. Some of these conditions are as follows;

• Immunoglobulin deficiency
• Lupus, this condition increases protein levels in the blood and may alter the outcome of the pregnancy test.
• Melanoma
• Carcinoma of breast, lung, stomach, colon, ovary, pancreas, liver or bladder.
• Molar pregnancy, a condition that occurs when the embryo counts only with the father’s cells and they begin to reproduce, which can lead to a tumor that ends up being the culprit of the false positive.

Spontaneous Abortion

Although gestation may occur, the presence of certain conditions that subsequently lead to spontaneous abortion is often the most frequent cause of false positives.

This type of loss usually occurs in the first trimester of pregnancy, one of the most delicate stages of gestation. Many women get a positive result in the test, but when they visit their doctor, they are informed that they have had a loss or that the fetus did not develop, most of the time the cause of this condition is unknown.

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