Iui on nov 21st. i had possible implant spotting for about 2 hours on dec 2. i was supposed to start on dec 5th with negative test. did i test too soo?

Can retest: Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, vaginal spotting, or medications. A test gives a reliable result 3 weeks after "sex" (3 weeks after when conception might have happened) or 1 wk after missing a period. If done sooner, a negative result may be due to testing too early such as less than 2 weeks after conception.