She may be delighted, but if there is an actual pregnancy do you have the resources to care for an entire litter of rabbits? Can you sex and separate them before they mate again? A 4 year old's job is to be delighted by babies, but the adults have to worry about the realities of dealing with living creatures.
Hopefully they're just weird bunnies. There are so many homeless bunnies these days!
We are as gods to the beasts of the fields. We order the time o' their birth and the time o' their death. Between times, we ha' a duty. - Terry Pratchett.
"Men have forgotten this truth", said the fox, "But you must not forget it. You become responsible, forever, for what you have tamed. - Antoine de Saint-Exupéry