Girls, hello ? I wanted to start weaning next week (5 months will be e…

Girls, hello ? I wanted to start weaning next week (5 months will be exactly that). Share your experience, how did you introduce it? How many days do you give one product? Can vegetables be alternated with fruits (first broccoli, then apple, then zucchini and so on)? Or is it better to give only vegetables first, then fruits? I talked to the pediatrician, she says if he doesn't gain much weight, we can start slowly (he gained 500 grams, before he gained 1 kg and himself thin).