Growing Family Dilemmas

Emma

So I live with my mom and my one year old. My daughter's father has not shown himself to be the best provider for a family, my daughter has an older half sister and a step sister (the one way he shows himself to be a good guy, he considers himself the father of his ex's older daughter despite not being biologically related). Sadly, I always wanted children close in age. My mom can't and doesn't want to support more than she already does. I know I should focus on me and the amazing baby I already have. But I see her interact with other children and dolls and I want to give her the siblings I never had. Any encouragement or sympathy?