Medicine

Does anyone know if it's safe for baby if I took amoxicillin-clav while nursing and baby is on cefdinir at the same time? My dr said oh you can pump and dump and I stared at her bc that's not an option and she said "well if you're worried about it passing" and I told her I'm worried for the baby to have her antibiotics and mine in her system at the same time and she said "she'll be fine" so I'm iffy about her response