False negative pregnancy test

Answer 1

False negatives are much more common than false positives. The commonest reason is that the test is taken too early. It takes 6-10 days after fertilisation for the embryo to implant and start producing hormones so you are unlikely to have built up a sufficient hormone level to test positive until around the time of a missed period. The other reason is if the test is not taken with the first (and strongest) urine of the day, the hormone in the urine is too diluted to register on a test.

Answer 2

You can't get a false positive if you get your period day after a positive it's due to a chemical pregnancy which is when a embryo doesn't implant and will come out like a period. You can have false negatives as you may tested to early for the test to pick up on the hcg surge

Answer 3

to get the best results from a pregnancy test, take it first thing in the morning. this is because when you first wake up is when you're urine is strongest.

Answer 4

The time of the day, your stress level and how much water and food you contained that day.

Answer 5

The test could be very cheap or poorly made causing it to mess up your reading.

Answer 6

False positive pregnancy tests are extremely rare. They are caused by tumors when they occur.