Wont Start

I WAS WONDERING IF ANYBOBY CAN HELP ME ? SOMETIMES I WILL START MY CAR AND IT WILL START OTHER TIMES I WILL TRY TO START IT AND IT WONT START I HAVE NOTICED THAT THE FUEL PUMP WASNT SATARTING SO I CHANGED IT IT STILL DOES THE SAME THING I WAS WOMDERING IF THERE WAS AFUEL PUMP RELAY O SOMETHING IT IS A90 HONDA CIVIC DX