Had a normal period 2 weeks after taking plan b 2 days after sex. 3 weeks now, feeling bloated and nauseous. pregnant? hpt 3 weeks after sex- neg

Pregnancy unlikely: 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 worried, one can repeat the test next week with a different brand of urine pregnancy test.