My DH has had asbestos abatement done at work and he's their enviromental engineer so he knows a little bit on this subject. I know that he says as long as the asbestos is contained it is fine. What you have to worry about is loose asbestos. For instance if you have asbestos insulation on pipes (very common in schools and businesses). As long as the insulation is covered and without tears it is fine. The problem is when it gets old and the covering tears, then it should be removed. Things that are contained such as flooring and roofing materials should be fine because they are contained and do not release particles into the air.
The problem is for people with prolonged exposure to asbestos particles, esp. if they smoke. For some reason people who smoke have a much higher incidence of cancer and asbestosis.
I wouldn't worry about your baby, it sounds like your Dad did a great job of removing his flooring. People get really nervous about asbestos, but it's not really anything to get upset about. I can understand, when you don't know what is going on and you're pregnant things such as this worry you.
Hope that this little information I have about this subject helps. Oh, I hope that the Dr. get back to you.