try looking in adoptionforums.com , i'v been looking for my daughter who was also born on 4-20=83 and have seen something come up there. good luck on finding your b-mom,ALSO happy 20th!!!!!!!!1
im sorry we are in that web site try looking inwhere it says search by year (1983), if that does not help e-mail me back and i will find exactly were i found it at . GOOD-LUCK