I'm planning to exclusively breastfeed for around six months when my baby is born. Do I need to buy equipment to express milk? I know that if I don't, it means that others won't be able to feed the baby and that I won't really be able to have any space from the baby until s/he is weaned... but if I'm happy with this, I guess there is no need for me to worry about expressing? Please let me know your thoughts and experiences on this!