Q&A: Will Ingesting Lead Paint Hurt My Baby?
I sanded some old furniture and then realized that the paint could contain lead. If I ingested lead paint and then breastfeed, will it hurt my baby?
It sounds as if your exposure (if any) was minimal and is over now, so there's no need to worry.
Lead can enter the breast milk in small amounts, but it's not dangerous unless a mom is exposed to super-high levels — enough for her to be diagnosed with severe lead poisoning.