Well, Happy Birthday and Motherhood all at once.

Does she live very far from you? Is she your first child?

You may find a lot of help in the Frequently Asked Questions for Pre-Adoption and Fostering Forum.

Have you thought about changing her name? It's a great ice breaker? At her age, she probably would like to do it and it's a fun thing you can do together. There's a thread in the linked FAQ that discusses it.