you will be surprise how many mother stop breastfeeding and move to bottle, because they think it is the right thing to do. i didnt know you are not having enuf for your baby.
the human body is a wonderful thing. your body will keep producing milk as long as the baby require it. increase the number of feeds as this will stimulates you body to produce more milk. once the baby stop sucking, your body will stop producing milk. you need to drink lots and lots to water as your body will need it.
is your baby putting on weight? that is one indication your baby is drinking enuf milk. get your baby weight and compare with the average weight target for the baby age. i have come across mothers who has a masectomy (and chemo) and still able to breastfeed for years. so breast is my top subject (medically, that is).
also. have a look at this... www.lowmilksupply.com
and do a google on galactagogues. yes, it is getting a bit long in the tooth but use the bottle as a last resort if you can. good luck.