Can anyone recommend??

Brittany • 28. Married 3yrs. After 14 months of ttc, my husband and I finally got pregnant with our daughter, Aubree. Born 12/9/17💕 Angel baby born at 7wks 6/5/2020👼🏻 Currently ttc Baby #3💙💜
Hello, ladies!
So, after posting my last post yesterday about being 4 days late..guess who got a visit from Aunt Flo. Right after I bought pregnancy tests! 
My husband and I are trying for baby #1. It's been 9 months since we've started and my period being 4 days late has been the only luck we've had. 
Therefore, I wanted to ask you guys; what is the best "helper" in becoming pregnant. I've been thinking about Preseed??
Any help is appreciated!!