Your brother must be proud of you. You are a strong lady indeed. That’s so kind to be helpful to others especially in this way. You can’t even imagine what you bring in others life by giving them a child. No wonder, you must be a gift to others. You must be master in this. You are blessed and filled with fertility. You are doing a kind deed to sharing your fertility for others. I have 3 child and my husband wants one more. But I am not in stage to go to another hell like trip of pregnancy so convincing him for surrogated baby. I‘ll surely let you know about it.