When will my goat lay an egg?

When the thrush knocks and the last light of Durin's day shines on the keyhole

>>9103747
The goat should have laid its egg already. If it hasn't yet that means the egg is stuck and will have to be squeezed out.
Simply compress the middle of the goat until objects start emerging from it. Continue until the egg appears, then return any non-egg objects or fluids to the interior of the goat.