Reinstating previous back up of contacts

Hello,

Does anyone know how to reinstate an old back up of contacts on an ipad?

I smashed my phone and borrowed a friends briefly. When i returned the phone, i deleted the contacts from the phone, after i had turned i cloud off. Now that the friend is using the phone again, and icloud has been reactivated, my contacts on my other devices have been synced to what remains on my friends phone - ie ALL my contacts are deleted.

Do I have any chance of getting my contacts back?! Ive lost years of contacts....

F