My daughter is 1 and half month old. I had inverted nipples so initially I used nipple shield for breastfeeding during early days of delivery. Since my breast were too engorged I started using breast pump to express milk to get time relief .The milk which I expressed I gave to my daughter thru bottle.I am having good supply.When she used to take directly from breast she used to take take 2 hrs to take milk and then we  felt she remain hungry so eventually we had to top feed her .Now I am giving majority of breast milk ( maximum pumped ) and some formula milk too. I also try to directly breast feed her .Sometimes she is taking very easily  and sometimes she didn't since I know taking milk from bottle is easy for baby.Since I am 1st time Mom, sometimes I am thinking whether by directly not breastfeeding her Am I doing something wrong.hubby says it doesn't matter as long as she is getting breast milk that is fine whatever mode is.