"She also hasn't returned my texts, which is strange for her, so I'm starting to wonder... "
Uh oh. That's not a good sign. For her sake, hopefully there's a reason for the delay. I'd be crossing fingers by now too. If it is something bad, better to find out now than later, but if it has anything to do with children's safety, they wouldn't have said "she can keep subbing and nothing indicates it is unsafe she cares for children alone".
