I'm a newb, but that definitely looks stunted. cotyldons look yellow too.
I stunted my DWW auto as well (overwatering), it's day 11 and is slightly bigger then that but leaves are not yellow. My stems are reddish brown and black near the soil, are yours?
doesn't look near death or anything in my opinion, just give it lotsa light and if it's a photo you can probably nurse that thing back to strong health
sorry Markob but it really looks like your plant has been over watered.
I know you want this little one to grow big and strong....but it's not looking good, so I believe what mrblu meant by "abandon ship" is give up on this plant and start a new plant, as it may not survive