I had unprotected sex with my husband and after 5 minutes i started having stomach ache after doing home test for pregnancy it bring out different results (negative and positive ?

Tests are accurate: Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, STD's, vaginal spotting, menstrual periods, or medications. A test gives a reliable result 3 WEEKS after sex (3 weeks after when conception might have happened) or 1 week after missing a period. If done sooner and is negative, or if having varying results, one can usually retest in a few days or more.