Hello!
It will be completely possible to 'start again' as your supply will have been so established at 6 months. The milk actually takes a long time to 'dry up' at this stage. But...it will be hard work.
You will need to set aside a few weeks. Nurse him on demand - even take him to bed! After each BF pump either straight after or an hour after. Even if nothing comes out, pump for 10 mins. If he sleeps well at night, you may need to set your alarm to express every 3/4 hours, or dreamfeed him. The night feeds are the key to increasing your supply as hormonal levels are higher then.
Buy fenugreek herbs - they are completely safe. Take 3, 3 x a day. If you have a Holland and Barrett they are stocked there.
Visit your doctor, or buy over the counter, a digestive tablet called Domperidone. Again, it is completley safe. 30mg tab 1, 3 x a day. It 'restores' your supply - and if you had a good supply from the start this may be your answer.
As you stopped bfeeding him altogether, you will probably need to give him a top-up after each feed. Start with say 4oz and gradually decrease as he takes more from you. When he only takes 1-2oz, you can confidently 'ditch' the bottle and feed on demand for a few days until your supply has fully returned.
Good luck xxx
