Miscarriage

I just found out yesterday at 8 weeks that my pregnancy is not viable as the foetus is not growing... It still feels unreal to me and part of me is in denial since I still have my pregnancy symptoms and haven't bled it out yet. Doctor advised to give it two weeks to see if I will miscarry naturally otherwise I will have to do a procedure. Has anyone gone through the same experience before? Is there anything I can do/foods to avoid so I can miscarry naturally and heal quickly?