Welcome to the jungle. I am a birth mother so on the opposite side. 1. See if you birth parent has signed a waiver of confidentiality. They are not always truthful - they discourage the adoptee and the birth parent makeing both sides think the other doesn't want to reunite. I have had a time with them over the last few months - they claim they keep a log in your file and keep track of calls from either side.
My son was born in Maryland and adopted out of Virginia (I think). One thing they did tell me is that they did not alter his birthdate on his new birth certificate.
Maybe over time these people will get it. It is sad the the messenger between us is so uncaring. A grateful recovering catholic, Laura Beall, birthmom

Remember: Every birth mom I have ever talked to or met wants to be reunited with their child more than anything else.