preseed

Carina
me and my fiance have been ttc for two years with no luck and now are currently trying preseed since i did research and seen lots of positive reviews do you ladies have any experience with preseed and how long you ttc before bfp using preseed? i get extremely depressed when visiting family since i look pregnant but am not pls help af due btwn 24th of july and 4th of august really hoping for our blessing