Hi Starting again,
I am so sorry to hear about your losses. It sounds like you have had an awfull time. 
I can't answer this from personal experince, but from that of my best friend.
She fell pg at the start of a relationship and wasn't sure it would work but decided she could not have an abortion.
Her and her partner decided to give it a go but is was rocky. Then he was sadly killed in a motorbike accident when she was four months pg. At the same time other stuff blew up and she lost her home and job and had to move across the country. She came to stay with us while she got herself on her feet and moved in to her own place a couple of months before her ds DS arrived.
Postnataly she had an understandably hard time. She has no family locally but her mother came to stay and was worse than useless. She was diagnosed with PND which really annoyed her as she felt like she was not being allowed to just grieve. She had problems bonding with her DS.
I was not as able to help as much as I would have liked as my ds arrived two weeks after hers so I had my hands full there too.
So like you she had a really rough time with lots of unhappiness while her lo was in utero. She was constantly in tears and did not know how she would ever cope again.
The good news is that her ds is now a really happy healthy 18mo. Babies are resilient little things. And luckily quite oblivious to most of what goes on around them! People do have lo's in the most dire of circumstances and all is ok.
She is also doing well and looking at the possibility of starting work again etc. She has made lots of new friends where she is now. They are a really close and loving pair.
One thing she found really usefull was a young widows support group. Not therapy but people who have been through similar things just getting together for cake.
Are you managing to get out and about where you are now and put down roots a bit? It can take a while to make new friends in a new place and I really feel for you. Does your DH understand what you are going through?