There’s a growing body of evidence that the two most common pregnancy tests can actually be harmful to the pregnant woman.
According to a recent study published in the Journal of the American Medical Association, there’s “strong evidence” that two of the three most common types of pregnancy tests (a urine pregnancy test and a blood pregnancy test) can cause birth defects.
The results of the study were presented at the American College of Obstetricians and Gynecologists Annual Meeting on Wednesday.
The study was done in a collaboration between the University of Colorado School of Medicine and the University at Buffalo.
In a follow-up study, the same researchers looked at a more detailed look at the data from the original study, looking at data from over 2,000 women who received their prenatal care at two hospitals.
The researchers found that the pregnancy test used by the study’s participants had the potential to cause birth defect, even after adjusting for the type of blood tests used.
They found that there were about 100,000 birth defects that could have been caused by this test, but that it didn’t appear to cause any birth defects in the women who did not receive the blood test.
However, the researchers did find a link between a blood test and birth defects after adjusting other factors.
The findings are interesting and could have implications for a variety of things, including whether a pregnant woman should be taking a blood-based pregnancy test or a urine pregnancy-test.
Some researchers have pointed out that the urine test, in particular, could be used by pregnant women as a marker of a positive pregnancy test.
The urine test can detect the presence of the antibodies that are found in a fetus, which can indicate that the fetus is not a threat to the woman’s health.
The blood test is more specific, but the results are still often presented as a positive result for a positive test.
That can lead to an even higher rate of false positive results, since a lot of women may not even know they are pregnant, and the pregnancy is being monitored.
Researchers are still investigating the issue and have not yet confirmed that the findings in the study are true.