freaking out

Okay my OB said it was okay & other people said it was okay, but I'm still worried can dying your hair hurt the baby??? I'm 7 wks & I dyed my hair lastnight in a well vented area & I didn't get any dye on my skin but the top of my head if any by accident, & I'm just really worried I could have harmed my baby and now it'll be all my fault if it comes out missing Limbs or anything like I can't stop stressing about this I know it sounds silly but Im a ftm & I don't want to do anything that can affect my baby's life in a negitive way