Am i pregnant? getting some confusion results?

can anyone help me plz. i used first response pregnancy test to confirm my pregnancy, after 3 minutes i noticed a very faint line and a darker line. does it mean it is positive or negative. but i am having tendered , food craving....i am eating like ghost for the past 4 days. like 2hrs once a ful meal. plz help me guys to avoid this confusion. and also when can i take the test again..i ahve planned to take it after 2 days....will that be alright