They are pretty expensive but it helped me get my bfp on the first try.i ordered it online on amazon a few weeks ago it was delivered on the 15 of december. it just happens that same day i got a solid smiley the same day i bd that same day and 2 days after..i got my bfp monday its still surreal.so ladies if your intetested in them try them everyones different but they def did the trick for me.