Preseed ?

Okay can some one please explain exactly what it does ? I know it mimics your fertile cm , but I do not get EWCM .. Only watery slick cm around ovulation . We used it last night and this morning I had really milky cm and a lot of it . Is this from the preseed ? I read where it created EWCM for some women .. But they're the ones who create a little bit of it already . So if naturally I don't have EWCM will it only produce the slick watery stuff .. ??