Tilda, I have been in a similar sittiuation to you. I have lower back injury where some days I need help to get out of bed and can hardly walk at times. Have you done any pain managment courses, I did and it help heaps.

Just to let you know the best change table and bath that I have used is what I have now for dd#3, whish I had gotten it for the other two. It goes over your big bath so no lifting baby baths full or water etc. My now 6 yr old tried it out last year and still fitted in it. Google little bear. With my first two I had to make sure I pushed then out to the car in the pram then transfer them to car and visa versa, this time I use the unity capsule and could click it on and off my pram. Make sure the pram you get has handles at the right hight or it can make things worse. It took me a little while to figure that one out.

On my realy bad days I spent most of the time on floor with bub so I would not drop them. It does get worse towards the end of pregnancy, I suggest afterwards to see a physio to help strengthen things.

I hope this helps, if you need any other advise from someone in a similar sitiuation please let me know