15 hours PP c section

Ugh my belly is still huge and gross. But I got up and walked around on my own for a bit. Pain isn't to bad just really sore ATM. Have only taken one dose of pain meds all day. My milk hasn't came in and I'm pretty much not producing anything 
Anyone have any ideas for getting it to come in? 
He has nursed all day long but nothing happens. Not even feeling contractions to shrink my belly which is why I think it looks so big. 
I'm so sad that it looks like this. My first was so different. Can't wait to heal and start working on tonig up.