Help with guinea egg hatching

[MountainChickenMama]

So I had 2 guinea eggs that were 28 days on Monday, the first egg hatched on Monday morning at 7am, the 2nd egg pipped on Wednesday morning (I think)...Here is the problem, I can hear it peeping, tried to "help" it by pulling the egg shell back and it still hasn't hatched....I can still hear it peeping and now I can see the pip area moving, should I just let it go, or should I help it?

 

[jvls1942]

It does not sound to me like it needs help..