The snail don't want to lay the eggs

[snailkeeper21]

Two of my garden snails, Helix Lucorum, mated more than one week ago. Since then, i have separated the two snails from the other snails, and i put them in another terrarium. The environment has moist soil, water, food and eggshells.



I have read an article that says the eggs will be produced in one week after the mating process is finished. Well, one week already passed, but i still don't see any eggs.



Can someone explain me what is wrong with my snails? Why don't they want to lay the eggs?



Thanks.

[morningcoffee]

Might have been an unsuccessful mating so there's no eggs to be laid.