15 weeks and my water broke

I’m 15 weeks and my water broke.

Doctors don’t know why, I show no signs of infection, no high white blood cells, I’m not septic. They gave me two options. 1 is to terminate and the 2nd is wait for things to happen naturally. So I chose naturally, I hope the amniotic fluids build up. Baby is still alive and if it comes out it won’t survive. If it does survive it’s lungs won’t work properly.

Has anybody went through something like this? I will most likely end up having a miscarriage.