The fact that you all contemplate on this matter at all already making you a much better parent than many that contributed to overpopulation just by being care of consequences. Most of the overpopulation problems come from too little education in parents. Those who have many children tend to have low education and consent. Consent protection tends to be a result of having an educated population as a majority. The higher education and consent, the fewer children per family, but also a better quality of life if said children.
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