If you are experiencing an unplanned pregnancy and have just started researching your options, the term "birthmother" or "birthparent" may sound quite odd to you.
Birthparents are people who have made or are in the process of making an adoption plan for their child to be raised by adoptive parents. Traditionally, hopeful adoptive parents have written "dear birthmother letters" -- letters of introduction to perspective birthmothers. We realize that today birthfathers are also quite often active in the process of making an adoption plan for their child, but the term "dear birthmother letter" seems to have stuck.