^best site for re-lactation advice. I would also contact an LC and make sure to take funagreek and blessed thistle asap. The sooner you start the sooner your milk will come back.
If you need donor milk I would contact Human Milk 4 Human babies and locate a donor in your area. They can be found on FB. You can request the donors health records from pregnancy as well if you feel insecure about receiving milk from another woman. I assure you it is safe and less babies have gotten sick from donor milk then formula. Especially because formula can be easily contaminated.
If you do not locate a donor the first time, keep posting. You will find someone in your area and most people find long term donors. :] Good luck mama <3
Contact that LC asap!