I need advice ASAP

Okay, so we got a call last night about a possible situation. I don't want to get too excited because I have to be rational and not lead with my heart like last time. The baby is a boy and is due in only three weeks, and the fees are only $14,000!!!! I remember, long before this adoption journey began, when I thought that was a ton of money and now it seems like pocket change :) Anyway, the pbmom has two children already at home and says there is no way she can raise another. The thing that is making me nervous is the birthfather situation. We don't have much info on him (I've got a call in to the social worker hoping to get some more), but what we do know is that the birthmom says she doesn't know his name. Some of you adoptive moms, have you been through this? What was your birthfather situation and what was the agency's advice to you? They told us it's labeled "high risk" because the birthfather hasn't consented, but then they said that most of their cases don't have a named birthdad and nothing ever comes of it. If he was a one night stand and she doesn't know his name, are we pretty much in the clear? The case is out of Ohio, and I know they have a putative father registry, so if he were to sign up on it, he'd have 30 days to do so after the baby's birth. I seriously couldn't handle it if after a month, I had to give a baby to someone else.
I'll post an update as soon as I hear from anyone, but in the mean time, any advice?? I'm floating between being so excited to being so scared.

***Update*** Our social worker just emailed me and said that the birthmom isn't required by Ohio law to name the birthfather. So, that could mean he knows and isn't supportive of the adoption OR it could mean that he was a one night stand. I'm so torn! We're calling our consultant this afternoon to get her input.

ALSO, the agency we just disrupted with emailed. I guess Amanda's "boyfriend" called the agency yesterday looking for her. He demanded to know if she placed with them. She must've left the state or something. Maybe she was afraid of him or maybe he didn't support her decision and she placed somewhere else. Who knows? But, you know how hindsight is 20/20? Well, I am SO thankful and consider it such a blessing now that we aren't in the middle of that. Imagine if she had placed with us and then this guy came back for the baby. I couldn't have handled that. Is that what I may be getting into now? I don't know what to DO!!!!