Here you go:
https://www.backyardchickens.com/t/491013/goose-incubation-hatching-guide-completed
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It sounds as though your egg is alive. With movement and blood vessels... For sure! It's hard to mistake those two things. What kind of incubator are you using? Canada geese are lovely, and I will tell you (secretly) that they make great pets. You could always get a few other little goslings to keep it company... I know a lot of people who rescued a baby goose and did keep it, though it must be kept rather under wraps.
However, as I think I shouldn't say that, it is technically not allowed to keep a wild goose. If you ask me, a stupid law; it is easier to kill them than to save them. Which is more destructive in the end? The most important thing is that you reached out when it was in need. Good luck.
Since the OP never said what kind of geese are at this pond they might not be wild geese, but dumped domestic geese. In that case I think it would be fine if you kept it. But if it is a wild type you may need a permit or something to keep it.