I don't know, hon. Just be prepapred for anything - including the worst. Someone very close to my heart was in a similar situation. After years of trying to find his mother, being met with anger and silence by her friends and family members, he finally gave up.
She found him when her alcoholism had left her broke with no where to live. She had not seen him since he was 14. This was 20 years later. An angry, sad, hurtful soul she was, and still is I am sure.
Just be careful. You two have a baby due soon, and maybe right now is not the time for such drama and heartache. Just be careful