Disability is one concern that's consistently exiled to DeNial. Yet many of us spend months, even years, recovering from today's increasingly chronic and complex maladies - adding financial loss to medical woes. If you have unequal resources or income flows, compensate for this with agreements that equalize these disparities gradually over time. With children you cannot afford to skip contracting what happens, when, or if. But remember that even with visitation agreements, in practice it is generally the biological, adoptive parent who has final say.
Children are as expensive as houses.
Be real about what could happen. With houses and businesses, titling is everything - yet often is an afterthought. Create partnership agreements that foster genuine partnership. With these concrete measures you can literally build a foundation for your relationship, with each specific action taken a testament to your love.