Hello,
These symptoms could be due to gastroenteritis or pregnancy if there is a history of any unprotected intercourse. Hence to confirm the status of
pregnancy, I suggest you to test for
pregnancy by a highly sensitive pregnancy test 10 days post ovulation with a sensitive ( 20 - 25 mIU ) pregnancy test. Also then I would suggest you to get your serum HCG levels estimated since this is more specific than urine for pregnancy tests.