Duck egg 2 air sacs and/or malpositioned. Need advice asap

[Kitkat1992]

Advice on if I need to assist with this hatch. Newbie so I don't know what I'm doing. Not sure the exact days either. I don't want to lose the little duckling so any help would be great. Thank you.

Incubation temp 100°
Humidity 50%

 

[Kiki]

None of the pictures above look like they are anywhere close to hatch day.

 

[Kitkat1992]

None of the pictures above look like they are anywhere close to hatch day.

Okay thank you. I lost the last 2 so I'm kinda being a worry wart with this one. On top of not knowing the exact date really puts the stress levels high. . Would you be able to tell me about how long until it's ready? Is that 2 air sacs or just one? Is it positioned the right way?