Can taking plan b cause a false postive on a pregnancy test?

Plan B does not cause false positive pregnancy tests. It is also not as effective in preventing pregnancy as previously thought. read more

Plan B will not cause a false positive test. Plan B is quite effective but not 100%. Assume she was a plan B failure and have a physician take over her care. S/he will time the pregnancy properly and advise her on how to proceed next. read more

Plan be is, if I recall correctly, about 90 percent effective, which would mean that one in 10 women get pregnant despite taking it. Since Plan B doesn't cause false positive pregnancy tests, I fully assume that your positive pregnancy test means that you are indeed pregnant. read more

Not likely: Hypothyroidism is not expected to cause a false positive pregnancy test. If you have any concern, get a blood test for HCG level. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. read more