Just been browsing, but wanted to pick up on the DH bit as I'm still in awe of mine... (Btw - I'm
at the compliments, I do waffle but I'm glad its coherent).
My husband has been amazing. Last year before our therapy (unrelated to IVf though it featured) this IVF would have broken us as he wouldn't have been decisive, confident or open enough to be supportive.
He:
Attended every single appointment (wasn't necessary, but he took notes, reminded me when I had to see the nurse, controlled the situation as my mind never made it to the clinic and had me playing quiz thingys in the clinic when I was anxious)
read the zita west book.
researched stuff
did most injections
Stupidly abstained from alcohol in some weird sense of solidarity 
maintained the house if/when necessary
Took his manvits, wore loose trousers
Refused to have sex with me after ET (I was gagging, we never had sex during IVF my ovaries swelled up quickly and I was constantly uncomfortable)
Bought home flowers and choc after I got mardy over the fact I had been born a woman and he had the indecency to only contribute a wank.
Stayed by my side while I miscarried
Kept me calm when I felt the baby pass
Offered to clean me up when i couldn't bear to wipe our baby away
Held me for days while I bawled
But above all, he was engaged. This made all the difference to me. To be honest, reading the above he sounds like a pushover. He isn't, but he did always want a baby more than me. My need for a child came much, much later (about 10 mins after I was told my tubes were blocked).
Now, not all husbands are as above and not every woman would want that. my DH and I have been through hell, my marriage nearly failed last year and I was happy to walk out so don't think that I am gloating or special - it is no reflection on your husbands or relationships at all my DH is no angel. Everyone works differently and the whole process excludes men anyway. How many of the staff address you both? Men are excluded in many cases, by biology I think it can be hard for them to comprehend it all as so much happens to ours in general and not all women will share every single aspect of their biology as standard. I think IVF is scary and emasculating to many men and they may feel redundant. Mine was more fascinated by the scifi aspect mind you.
I don't know how you can force someone to be engaged, but I know I couldn't have done it without at least half of the list above as I would have felt even more alone and I think every woman should have a strong support even if it isn't DH. The zita west book has an excellent chapter dedicated to men which isn't patronising and deals with the feelings that men might experience.
I hope that answers the different ways in which DH can help, and my experience of (excessive) support. This is not intended as a gloaty post nor as a comparitive one. I'd still take a millionaire husband over mine fickle
Sorry for the length - I'm tipsy.