hlo sir/mam it's around 15,20 days gone when I had my intercourse now my period date gone I didn't get my period this month.. when I test my pregnancy it came negative result.. why... is their any other problem or m pregnant

A. Mam sometimes the test kit cannot detect a pregnancy because the hundred percent reliable they are not second sometimes you do hormonal disturbance also Women can go through this kind of a problem where they keep on the period for a week to 10 days but if it hasn’t been an entire month you please get an ultrasound done with the doctor