Well,basically,this is a controversial topic!
A lot of paediatricians,including me,believe that if you're breastfeeding and taking supplements for iron and
calcium and vit D,no need for them.
In any case,at this age,you need to give 2 solid meals and 4 milk feeds including1 top formula feed.
You can give ALL vitamins,iron etc in the solid meals,so no need again,for supplements.