Preseed does it work?

Michelle • Married to my high school sweetheart for over 10 years now. TTC for 4 years now. We`ve both been tested and we`re both fine. So I`m not sure what to make of all this. I`ve left it in gods hands.
Personally I don't have a problem in this area but I've heard women using Preseed helps the sperm move more freely. Its supposed to increase your chances of getting pregnant. I'm just curious if anyone else has heard or tried this.