Yes it is. Because you are their mother. It is your divine right and your burden to make decisions for them until they are old enough to care for themselves.

In the wild, mothers abandon offspring when conditions are not adequate to raise them often enough. Some species can even spontaneously abort.

Before medical or medicinal abortion was available, women would abandon unwanted children or pitch them off a cliff. It's a sad fact of life that not everyone can be cared for.

I'd rather have safe and regulated abortion than a sleep of dumpster babies because you can count on abandonments and infanticide as a result of making abortion illegal.