I have tested positive 5 days in a row for ovulation but a negative on pregnancy test. what is going on?

Many factors: First you won't be able to determine if your pregnant for around three weeks after conception. Second just because you ovulate doesn't mean you can get pregnant. There are many factors including the sperm function and the anatomy of your tubes and uterus. You need to see your ob/gyn if you are concerned if there is something wrong.

Too soon to test: Implantation, when the fertilized egg implants into the endometrium, happens about a week after ovulation (range: 6-12 days), and it takes another 3-4 days after implantation (9-16 dpo: days after ovulation) for the blood pregnancy test to first become positive, followed 2-3 days later by the early positive pregnancy urine test, the home pregnancy test (hpt).