Marriage

My husband and I just got married back in April of this year. He lives in Germany and I'm living in the USA. I wanted to know if anyone knew what the income requirements was if we had a child within the visa process. So  it would be a family of 3 but I'm not sure what the requirements are.

https://aspe.hhs.gov/poverty-guidelines

For Affidavit of Support number of people on your tax return plus number of people being sponsored. You, child, husband = 3