Possible egg problem?

[noobchicken]

Today is the fourth day since I put the egg in the incubator. When candling it I noticed the embryo was near the very edge of the yolk? Is this normal?

 

[sumi]

Here's range of egg candling pics showing what it should look like day-by-day. Check here and compare it to your egg:

https://www.backyardchickens.com/t/...g-candling-pics-progression-though-incubation