empty breast?

Casey
We are going in day 9 of ebf and yesterday I noticed one breast seemed less full than the other. Baby has nursed both breasts (alternating firsts) each feeding and she is producing tons of soiled diapers. My concern is tonight she would not latch onto the more empty feeling breast, and I could not get a lot to hand express. Is it possible that only one side is drying up? How do I make it continue to produce quickly? 😩