Please note that this is the natural birth of an otherwise healthy child.

In Canada, provincial healthcare and private insurers have not kept pace with the needs and advancements in the areas of alternative methods of conception (IUI, IVF...). Yes, a naturally born baby wouldn't cost the parent(s) much medically. But, if you cannot have a child naturally, medication and procedures (lab testing, blood testing, artificial insemination...) are only partially covered and the amount corporate or union-backed insurers will pay varies widly by doctor and by patient. A couple struggling to conceive will easily pay 15-40K per child after the first procedure.

Funnily enough, friends who have jobs in the USA, but live in Canada often have better insurance that fully covers all of the costs after the deductible. It ends up costing much less to have IUI or IVF procedures with Canadian doctors using American insurers (of course they will take the money).