You have just had rotten luck and firetyperuler is wrong you have a 50% of getting a male im guessing you want one for gallade well hatch more eggs when found get to lv 20 then use dawn stone :) it takes on average 5120 steps for a ralts egg to hatch source (and info on ralts) here click me
Sorry, but the chances of getting a male Ralts from an egg are random. So just keep hatching eggs untill you get a male Ralts. (HOPE THIS HELPS) :)