Hi
I dont know for fact as i am new to this too and mine arent yet at that stage but since you have nobody who knows answering yet and i know you are anxious,...my 2 cents...
from what i have read on this forum myself if it were me i wouldnt mess with it any more or open the lid now .
It should be in lockdown if it is moving I believe.
You dont know what day you are on huh?Thats tough. but i think all signs point to it getting ready to pip
The rocking i would guess is it moving into position to pip.
Either way i think opening it to do anything now would be a mistake .Better to just let it alone until someone who knows answers you with a better answer.You seem to have done all you can now.
Is your humidiity up to 65% then it will be all you can do until somebody pips,
GOOD luck and hope you get a better answer from someone who has hatched before.. and hope your babies will be fine!