Hiya Abby!!
Quick question...
Does Ivy come out of the cage on her own? Does she climb out, onto the door? If so, have you tried to pick her up from there? Are you handling her yet at all?
If not, then now is the time to start to do it. Slowly, of course, keep the sessions short and sweet. Usually about 5 to 10 minutes is long enough. Guage her reaction, if she's shaking or trembling, talk softly to her and then put her back into her cage. Keep doing this a few times a day, but again, if she's scared, don't keep her out for too long.
The more time she spends with you, away from the cage, the quicker she'll warm up to you. Again, remember that her whole world has changed and while she may be happy in her cage, out of it is pretty big and scary. So be patient with her

You can also try finding a treat that she likes (my QP loves almond slices) and see if she'll take it from you hand, when she does, give her a happy 'good girl, Ivy!!'. This will help strengthen the bond between the two of you as well.