There really is no shape of the universe. It is like air, it really has no shape. But maybe many, many light years away it reaches to the end of the universe and it has shape. But right now our technology cannot tell, or go that far.
The Hubble telescope can see 13.7 billion light years away (pretty much the edge of the universe). But I have no idea how far you can see. Also, considering that the universe is expanding, everyday we can see a little bit further.