Giz you should definitely write to PALS. And tell them you have had unpleasant comments from a variety of people re age, bmi, whatever, quote the type of comments and attitude you have experienced, and tell them that it is making you unhappy about your care and anxious about future appointments / the delivery. They need to sort it out. You should not get worse treatment for complaining (that does not happen, ime, you should see an improvement in future).
Dee I think going into it as supportive friends takes a lot of pressure off and puts the focus on the baby. (It's hard to have time for anything else at the beginning anyway!). You can see how things go but I am glad he wants to support you. 
That bag is insane! Glad they are feeling that apologetic though 
I bought quite a lot of expensive stuff for my first DS - not quite changing bags but nice pram, clothes, highchair wtc. He was much wanted and at 37 with a good job I could afford it. Looking back I did waste a fair bit of money though. The 'expensive' thing that I think was most worth it, with hindsight, was the stokke highchair. I bought a mid range one first but DS didn't like it at all, I think because he couldn't sit properly upright in it, and he just screamed! The stokke tripp trapp is brilliant for posture and just nice (ime) to have him at the table with us. And it adjusts with age so he's still using it for sitting at the table for eating, drawing, craft etc. I think I am going to buy another one for the baby rather than evict him!