My big normal female just laid her clutch yesterday and her pre lay shed was thirty seven days ago as of yesterday.. The first two clutches of this season were within two or three days either way of thirty day from pre lay shed. Just depends on a number of things.. Don't worry about it. When she's ready, she will drop them...
Good Luck to you..
Nathan Stiltner
D & D Reptiles
Grundy VA
279-498-4837