Thanks for the query.
If you had unprotected intercourse
around the time of ovulation then there is possibility for pregnancy
But just by symptoms we cannot confirm or rule out the pregnancy.
As urine pregnancy test kits cannot detect early pregnancy, we cannot relay on your HPT test result.
Now you can go for blood test
for pregnancy to rule out the possibility or you wait till expected date of periods and if you miss the period, go for urine pregnancy test.