You have a good heart to open it up to a child in need. foreign adoption is a tough road emotionally and financially. adopting through a state foster system is tough emotionally and with no guarantees. both are valid ways to help a child. search your heart, do what you are called to do and protect your bio children at all times.
i am the proud mother of 2 beautiful adopted children from the foster care system. we were foster parents for 9 years and had 27 children before the Lord said this one is yours to keep and then followed up with her brother a year later. there are children every where that need help. do what you can when you can. bless you.