so u have to get information from several books too which is proven and trusted. it not only increase the chances to conceive but make the pregnancy healthier. i m also getting information through books and reduce to use the products available in market. it is worth enough to read this link below instead of wasting lots of money on products available in market, i hope u can gain more knowledge from this.
http://www.my-fertility.com/index-1.html?hop=knmew79