My friend had her (now strapping and healthy 8 yo) boys at 25 weeks. Her mum and MIL both struggled to begin with. Mum used her faith as a way to cope and spent some time being counselled by her parish priest. MIL did a lot of googling and found some online support groups.
Not sure if either of these things would be helpful to you?
I personally suffer from panic attacks and have medication I can take to help a bit - so maybe the GP might be an option too?
Do you still wear you original wedding and engagement ring