I saw my period after 3days late and it lasted for just two days with very light flow, could i be pregnant coz m avin the feelings, so i took a test which was negative but i really wanna be sure. pls what should i do?

Can retest in 4 days: 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.