Donation creatures have NO breeding restrictions, you just have to pay 3 shards per breeding.
There are however some species that DO have limited breedings.. Arkai, Coal Wyrms, Tinsel Wyrms to name a few.. go to the Bestiary and use the search term 'Yes, Limited' in the Breeding column, and you'll get a list of which and how many times they can breed.
Good news tho, limited breedings can be restored using the Breeding Restoration potion that you can find in the Mystery bags from the Black Market. Unfortunately, the Black Market just closed and we have no clue when it will return.