 [ Symptoms ] i had 8 negative pregnancy tests and then 1 positive [ Disease ] this means you are more probably pregnant as the urine pregnancy test will usually not become positive in most women until a missed period or about a week after implantation the urine test is usually positive at a missed period but only about 25 of pregnant women will test positive with the hpt 2 days before a missed period and about 40 the day before the missed period