Pumping then went to ebf

Meredith
My son was preemie so had issues latching in the beginning, so we pumped and supplemented with special formula for the first couple months and I breastfed At night and when i was home. Now I'm breastfeeding all but 1-2 feedings a day. And my son will take a bottle from my husband but not from me? Anyone have this happen? And the past few days all he's wanted is my boob like all day. Is this normal
For a 12 wk old?