Breastfed baby poop stinks bad

Tess • Nari Lyn 11/13/17•Emma Rose 3/17/19•Pierce James 9/28/20•Willow Grace 3/22/22

Sorry for the tmi but my baby is 5 weeks old and exclusively breastfed. This entire time she has had no smell but today all over a sudden it smelled so bad and strongly that we thought it was our 19 month old that pooped. My other three kids, who were breastfed as well, never smelled this badly before they had solids. Is this normal or is it possible that she may be reacting with something I ate?