How old was your baby when you first gave Tylenol/Motrin??

Hoping to make it to at least 6 months before my daughter needs it. She is 3 months and so far we haven't had to use it, not even after shots. If she NEEDS it than I will of course give it to her. But for low grade temps that don't go up and go away fastly I would rather not give Tylenol for that.