If you are pregnant, the urine home pregnancy test (HPT) can be positive as early as 10-11 days after ovulation and fertilization, though it's usually not positive until about 14 days after ovulation. That would be around the time of the next menstrual period. The blood pregnancy hCG test is usually positive several days earlier. Though you may be experiencing signs and symptoms of pregnancy, the only way to be certain that you are pregnant is with a positive pregnancy test.