Girls, hello everyone. My baby is 4 months and 12 days old. I'm only g…

Girls, hello everyone. My baby is 4 months and 12 days old. I'm only giving him formula milk, when I went to see the pediatrician, she said that we don't need to rush to give puree or apple. She said "Only when he turns 6 months then it's okay". BUT when I left for the bath his dad (my husband) gave him an apple ??‍♀️ I even warned everyone that I wouldn't give anything until 6 months. I'm afraid that his stomach will get sick soon, while everything is quiet, or something might happen for a while?