Ladies let me give you some advice from a mother of a toddler. Formula feed. Here is the reason why:
I always dreamed of having a daughter will a full head of lucious hair. I also always dreamed of breastfeeding. When she was born she had a good amount of hair and I was happy. I started breastfeeding and slowly her hair started falling out. Now at age 2 she has virtually no hair and the reason is because I breastfed! All of my friend who formula fed their babies now have children with beautiful, full heads of hair! I"m so jealous. My daughter is always mistaken for a boy because of her lack of hair. So do your kids a favor and go with formula. They will thank you some day.