The campaign for the new Chrysler 300 features aspirational stories of people who possess a capacity for hard work. In a spot titled, âHomecoming,â pro football player Ndamukong Suh proudly drives ...
1 Drinking too much fluid before taking a home pregnancy test might cause a false-negative result. 2  For the most accurate results, take the test first thing in the morning â when your urine is the most concentrated.
Blood or protein in the urine may cause false-positive pregnancy results. Urine hCG tests may give a false-negative result if the urine is too diluted or if testing is done too soon in the pregnancy. Certain drugs such as diuretics and promethazine (an antihistamine) may cause false-negative urine results.