To avoid potential legal issues, the intended parent(s) should have an attorney draft an egg donor contract or if the word “contact” is to official, then at least an agreement between everyone.  The contract should state that the egg donor is waiving her parental rights and that all children born from her donated eggs will be the children of the intended parent(s).  Also, if you know the egg donor, the egg donor contract should spell out the terms of any future relationship between the donor and your child and include some provision as to who will inform the child of the egg donation and when this will happen.