direct primary. a primary in which members of a party nominate its candidates by direct vote. Compare indirect primary.
I think unless you've had some medication in it with hCG lately (usually fertility drugs) that you are most likely pregnant. I don't believe there are any hormones that fluctuate with menaupose that would cause the false positive, hCG only rises with pregnancy and that's the only thing that the home tests look for. Hypothyroid medication wont affect the pregnancy tests.
The presence of any impurities in your urine sample may also cause a false positive pregnancy test. It could happen when the sample is contaminated with detergent, soap, or even blood. Not cleaning the cup that comes with certain pregnancy test kits can also cause contamination of the urine sample and affect your results.