The best you can do is give her the time and space that she needs. You should let her know how much you love her, and you'll be waiting patiently for her.
Don't force her to reconcile because she's not mentally prepared to continue with the relationship.
After a period of no contact, contact her to know her wellbeing. Then, a few days later contact her to know how she's doing and how you can help her. From the second contact after the no contact rule, you'll know whether to try to win her back or not.