Dawn,
I don't consider my bmom a grandparent to my son, but not because I don't consider her a mom in any sense of the word...she's just never played that roll in my life or my son's life.
I do consider my amom my son's grandparents - but I don't have a mother/daughter relationship with her...not because of my being adopted tho, just because I've never been a daughter to her, by her own admission.
A lot will depend on your relationship with the child...if you treat him or her like your child, while still respecting the bond the child has with their birthparents, then I doubt you'll have an issue.
I am also a birthmom and with the support of my daughters amom, she calls me mom (it kinda makes me feel odd, but thats a different topic) - she, however, has no relationship with my amom or any of my extended family.
Its important to remember that adoption doesn't disolve the birthparent connection...and each adopted person will react to that connection differently.
Its also important to remember that those who are happy/content with their adoptions and have healthy well adjusted relationships with their afamily or both afamily and bfamily, most likely aren't posting here, because they have no need for adoption support
