I have walked in your shoes, and it's really scary -- I am so sorry you are experiencing this, and I will be keeping you in my prayers. The fact that you've already made it a week is very hopeful.
With my current pregnancy, I went to the hospital at 14 weeks for a cerclage, and while I was in the recovery room, my water broke. I was devastated. They gave me very low odds that this baby would survive the week -- let alone make it to viability. But praise the Lord, my membranes miraculously resealed, and with 20 weeks on bedrest, I'm currently 34 weeks pregnant. I tell you this so that you will know that miracles do happen.
Please keep us posted.
God bless you.