My period it 17days late. i know i ovulated. i also have pregnancy symptoms. but home pregnancy tests are saying negative. could i still be pregnant?

Neg test = not preg: Home pregnancy tests are very accurate. They are the same tests used in a doctors office. They can detect a pregnancy 7-10 days after conception. The best time to take one is when you miss your period. If you doubt the result you can repeat it in 1-2 days. If you were pregnant the hormone level would rise enough for detection. See your doc for irregular periods.

Late period: You could still be pregnant even with a negative home pregnancy test. I suggest you see your doctor right away for evaluation, as there could be other causes of a late period. Until you know the status of pregnancy, don't take any medications or alcohol except prenatal vitamins.