Hi Tracy,
You're going through a lot right now, and I wish we could each take a little bit from your burden and carry it for you.

Have you thought of contacting a youth agency to help your daughter sort out her feelings, and thus help her make a decision. It is a good idea for you to hesitate on making the decision for her, as in the future, she may wish she had decided otherwise.
But an objective and outside source of support would help your daughter and help you as well, to see that she is getting some support and guidance on how to reach a decision that she will feel at peace with...

Please try and absorb it all a day at a time, because thinking of the future implications of everything will add to your stress and could be overwhelming.

If the Sheriff's department is involved in trying to find out more info, they may be able to guide you on your daughter's and your future grandchild's rights.

When things settle down a bit, and the element of shock and panic has subsided somewhat, you may see optimisim shining through.
A day at a time.
Hope4thebest xoxoxox