Help bringing my pony back to work?

I would say wait 1 or 2 more weeks before riding her. But while your waiting try taking her out on a lunge line doing short walk trot session about 15 mins. a day. Also take her out on a lead line on trails and go for a walk. Don't try and canter her for a bit. Once the 1 or 2 is up do light walk exersizes with you on her. Don't ride for long about 20-30 minutes every other day. Keep doing this until you think she is ready then try cantering her on lunge first before trying to do canter with you on her back. Hope I helped!