I want to wean my baby by 7 months hope it will not have any negative effect on him.
It is not okay to wean your baby at 7 months yet, it's too early.
You are encouraged to practice exclusive breastfeeding for the first 6 months and start complementary feeding after 6 months while you continue to breastfeed for as long as you can up to 2 years and beyond. That is the WHO recommendation and preached by all paediatricians for the wellbeing of our children. The sacrifice is worth it.