Trying to get my son to breastfeed

My son was born on September 13th and we started breastfeeding and he took to it great. However by my second night in the hospital, I had a c-section, my milk just stopped he wasn’t getting enough and so he was only taking a bottle. He was taking my breast milk and formula since his glucose levels were low they wanted him taking formula. So since my breast milk wasn’t participating all he has for the next two days was a bottle. When we came home and my milk came in I tried breastfeeding and he refuses to take it. My question is is there some tricks or anything I can do to get him to breastfeed again. Right now I am pumping so he’s on breast milk and not on formula so much but I have been looking forward to breastfeeding and building that bond with my child. Any advice would be much appreciated. First time mommy