I am usually very skeptical of using segulos, but I kind of like this one. See http://www.theyeshivaworld.com/coffeeroom/topic/my-segula-didnt-work
See, the point of this segula is to read the parsha of chana, who davened for children and was granted children. Presumably, the point is that then you will also be motivated to daven for children.
I like.