chasv77answered grow question 6y ago To not jump the gun, IMO, I would wait for that seedling to shed its shell and see that the 1st set of cotyledon leaves, are well on their way.
Anything can happen (and it has) between the first signs of sprouting, and getting that first set of leaves on it.
Me personally, I would feel a little shell shocked or sheepish, if my grow diary fizzled out before its first set of real leaves.
Bad/marginal seeds will do that to you.