Not sure if I should express or not. Dd is 8 weeks old and feeding is going well. I have no immediate plans to introduce a bottle but would probably like to offer breastmilk from a bottle at around 4-5 months (just for odd feeds not all the time).I have a good supply and often leak. Is it worth using breast shells to collect this milk and store it for possible future use?? Also if I express milk to freeze will my supply be greatly affected? I don't want to do anything that will have an adverse effect on feeding as it is going so well....