I'm 13 Weeks Pregnant And Trying To Have A Natural

I'm 13 weeks pregnant and trying to have a natural miscarriage what are ways that I can safely do that I can not afford a medical abortion and I cannot afford a child I have had bleeding the last 3 days nonstop started off late and then became heavy with slight cramping but they told me not to go into the emergency room because it is not an emergency I cannot afford this child and I need answers