Preseed or No?

I have been seeing a lot of people using Preseed, and I was wondering if I should use it or not, seeing as I have never ever had the need for lube. And me and my DH BD a lot. And yet, I have never needed it. And during my fertile time I have a lot of EWCM as well. So, should I try it anyways? Anyone else never have to use Lube?