Does Faint Line On Pregnancy Test Strip Indicate Pregnancy?

hi doc,im sania the thing is i took pregnancy test in the morning and there was a faint line after that it was became darker and its a 9th day of my missed period and now i just check again and this time a light faint line apear so what does it mean am i pregnant or what ??? i m married and its been almost 3 years and im trying to conceive too please answer me im waiting for your respond thanks ;-)