I give egg shells but don't give the dog all the eggs. I will cook with lots of eggs or boil some and give a few to the dog and all the egg shells. The calcium helps them deliver, stronger contractions I think it is, the oxytocin gets the contractions going again if she tires or does not push hard or often. Your female should be just fine without all the panic, unless she is small and your male is huge. Are these Romeo and Juliet from California Cane Corso?