I would call an ambulans and while we waited on them to reach the house, I'd try to accomidate her the best I could. Luckily, I have neighbors close oleh who's christian and would be willing to help. :)
Call 911 as I make sure she's comfortable. Tell her to relax, everything will be ok. Call my son the paramedic and tell him to get his butt over. Get clean towls/clothes, just in case the baby is in a hurry.
I would let her in and lay her on my parents' bed(definitely not mine XD) and call the nearest hospital, as well as my Mother and Father. I'd assure her that it's going to be okay and to stay calm until a doctor arrives.