I got my "calling" at 17. I knew the director of services at a local Catholic Charities in NY and noticed an 8x11 sheetr on her desk with pictures of kids and the title "Unadoptable". They no longer use that label, but... I was struck - It was hard enough being a teenager, but to be labeled unadoptable!! What does that mean? It stuck.
I married 27 years ago and had 3 bio children - now ages 24 (girl), 22 (boy), and 18 (boy).
I felt we had the room and resources to help at least one child and maybe a sibling group of 2. DH thought I was nuts!!
I slowly educated him about the kids "in the system" through books and education. I would read while he commuted with me home from work. His natural kind heart gave in.
We are hopeful. On October 7, there will be a committee meeting for placement of 13 year old twin girls. We are cautiously excited.
So you see - to have birth children or adopt is not necessarily mutually exclusive. But everyone is different and you need to find the way that works for your family. A loving DH is a real help in raising your children no matter how they come to you.
Just my humble opinion based on very limited experience. This 27 year marriage is the first for both of us and we are happier together now than ever.
Good luck. KC