I just went to an oral surgeon who indicated that I had an infected wisdom tooth that must be extracted asap. He also indicated that there is a hole in my sinus that is leaking bacteria. He has recommended that I have the tooth removed and "simultaneous repair of the fistulae between the oral and sinus cavity with a bone graft and tissue flap." The tooth extraction is covered by my dental insurance but my dental insurance does not cover the repair of the hole in the sinus. My medical insurance would cover the repair of the sinus if I went to an ENT doctor.

To make matters a bit more complicated, I am almost 7 months pregnant. The dental surgeon suggested that if I don't get the procedure done asap, the leaking bacteria could potentially harm the baby.

My question is - should I have the oral surgeon do the extraction (covered by insurance) which is scheduled for this Friday and then go to an ENT for sinus repair or is it just better to do it all with the oral surgeon on Friday and bear the $800 expense for the oral surgeon to repair the hole in the sinus?
Is there any danger to me or the baby if I wait to get the sinus repaired?

Any guidance would be appreciated.