I got my periods on jan28, in feb i had sex wid my husband nearly 8tymz. i had pcos. i didn't get my periods in feb. test indicates -ve. am i pregnant?

Maybe not: 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.