This book called 'Make Me a Baby: The Essential Guide to Conception, Pregnancy and Birth' is coming out in the UK in April and has a chapter on HG in it. You can pre-order it now from here... http://www.amazon.co.uk/Make-Baby-Essen ... F8&s=books
The book accompanies a TV series of the same title which will be on BBC3 next month and on BBC2 later in in the year. One of the ladies in the series has HG.
Natalie, x