So sorry for the loss of your little boy
, I've lost 3 baby boys to IC. It definitely sounds like you have IC!, I'm no expert but I think having a double uterus puts you at increased risk of having IC, they should have been monitoring your cervix bi-weekly
so sorry you've had to go through this!. I am pretty sure a few ladies on a support group have had successful cerclages with a double uterus!.
Where are you located?, Are you on facebook?, Please private message me I can direct you to a lot of great groups that could be really beneficial for you!. There is hope that a TVC or a TAC could work for you to have your rainbow baby
Xx