K.L.
I was wondering if you have perhaps thought about adoption. i am a little confused by your question (are you adopted yourself) so maybe it is time for some soul searching to see if you really can take care of another child. Adoption has changed so much just in the last 10 years i have known many families who have adopted and a number of birth mothers one being my sister. it is a wonderful opportunity to bring joy to a family you have selected and in many cases the adoptions are open so the child has an opportunity to get to know you. you are able to set many of the conditions with what you feel comfortable with. This option can help provide you food and shelter and medical care during your pregnancy to ensure a healthy birth.
it is just a suggestion but it sounds like you are already overwhelmed with the child you have.
god bless