Male Fertility Confusion

Sabrina • Married to an Airman. He is 21 and I am 23. December = Cycle 8. Impatiently waiting..
So ive been reading up on fertility bc me and my hubby may start trying to have our first little one soon and I just want some clarification. I read that a male having sex every day is bad and may decrease his fertility. Does that mean like 2 days in row every once in awhile or like it would have to be 5-7 days in a row to really effect him? TIA:)