Broken ankle, can i safely wear heels? (Months on..)?

I broke my ankle on the 21st April so over 2 months ago. I had to have surgery, and I started to put full weight on it 2 weeks ago. I am doing physiotherapy excercises at home. My prom is in.. a week. (Note, i'm from the UK where there is only one prom in high school.. ever!) and i have bought pretty big high heels to wear. I am wondering, will I be able to wear them? And will it have any adverse affects? Please knowledgable answers... Thank you so much in advance