Lovely to hear from you MrsA 
, and hurrah for going home.
Wrt to nipple shields, are you wearing them because you are sore? They are not the devil themselves,but they can lead to more problems than they solve. They can meddle with your supply because of the lack of stimulation, so if at all possible ditch them. If you have got sore nipples you need someone to help you with your latch.
Is he able to turn his head fully to both sides? Sometimes they can suffer trauma to the soft tissue in their necks when born via section (have you ever seen the way they are often lifted upby their necks by the surgeon when they are born?) this can cause them pain (it can be remedied) and they can find it difficult or painful to feed. Try lots of different positions. Tummy to mummy, rugby ball, biological nurturing etc
Please please speak to a bf'ing expert (a MW is not the right person to speak to) and they will give you the help you need.
Keep going with the skin to skin, keep him on you (mimic kangaroo care) as much as possible. Difficult I know after a section, but get dp or the mw's to do the lifting.
Everyone's milk comes in differently. Sometimes one minute it's just there, sometimes it's a gradual thing. Just remember your supply will react to the demand put on it.
I would suggest that when you get home do NOTHING except feed and cuddle, feed and cuddle. Keep visitors to a strict minimum as they can be disruptive. Everyone wants a cuddle (naturally), but he needs to be with you to get the milk and hormones flowing. And remember, dp looks after you, you look after the baby. Sometimes it can be difficult to be doing seemingly nothing, but you ARE NOT just sitting on your arse, you are doing the best thing for ds, plus you need to recover from the section.
Good luck and enjoy being at home