Protected sex on Jun. 23/30. Condom did not break and he also pulled out. Neg preg test 2day & period is 3 days late. Should I be worried? Pregnant?

Tests are accurate. Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, or medications. A correctly done urine 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, a positive result is likely real, but a negative result may be due to testing too soon.