Yea, I came across it being used for ttc after I had my son and I was getting impatient and wondering what else I could do to boost my chances. I used it and boom, only took once and I got preg with my daughter. Then after my daughter I didn't have any cuz we live in the middle of nowhere and they're harder to find so I didn't use any but we kept trying....I finally picked some up when I was in civilization, used it once, and got pregnant again.