Hi x Below is a copy of an old post I did a while ago that may have the link in your after, about gender preference on implantation - I hope this is what your lookin for x
(old post below)
I know this is a little daft but I couldnt help myself! I had discovered an old post through the search about egg polarity and the effects of gender - also the side of implantation too. Now I know some of you will think I am silly for posting this but others who are a little like me and maybe not as good on all the gender info I thought what the heck and decided to put on the link for anyone who is interested. I found it amazing its a about 4 pages of threads on the post and also a great link to Ramzis method on implantaion/gender preference (8 or so pages on that link too)
Forgive me if it annoys anyone for highlighting an old post!
http://www.in-gender.com/cs/forums/t/37878.aspx?PageIndex=1 (old post off in-gender)
http://www.obgyn.net/pregnancy-birth/pregnancy-birth.asp?page=/fm/articles/fetal_gender_placental_location (Ramzi Study)