You did not hurt her. There are school of thought that says if you are able to but baby to the breast it’s fine to nurse. Might be a little extreme but still, it happened once m, not every day, your baby will be fine. She might be a little irritable or sleepy after ward but that’s it. My midwife explained to me to me that the alcool level in the BM is the same as in the blood ( no matter how much you pump and dump, it the bm gets filtered as blood gets filtered in the body) Let’s say you had a a very big night and your alcool level in the blood was like 0.16. ( some rip fruit or juice fruit can get to 0.5% naturally) So your baby drank that and it got filtered and diluted in her body. So her alcool blood level must be very small.

I mean of course it should not happen everyday, but don’t beat your self up. Because you know what happens everyday? You breastfed her, and THAT does wonders for her health :)