HI Joy,
Congratulations on your new son!!
We see this sort of situation in our clinic quite often. Your assumptions are likely correct about your milk supply in terms of how it decreased but you CAN turn this situation around. There are many women on this board who induced lactation without a pregnancy....you're way ahead.
Domperidone has proven very helpfull in these types of situations. Most moms start with 10 mg 4 times per day for the first week and then increase to 20 mg 4 times per day. You should notice a difference in your milk supply within about 72 hours. You can find domperidone at select compounding pharmacies and it is also available from
www.globaldrug.tv It's important that you discuss this with your doctor so that you can be monitored and educate at the same time.
Pumping after feeds would help and supplementing at the breast is key. Babies learn to breastfeed by breastfeeding. Many mothers use the Lact-aid
www.lact-aid.com filled with their expressed mik, donor milk, or formula.
It shouldn't take too long to get you back up to speed with the help of the domperidone. I would encourage you to contact a board certified lactation consultant to assist you with getting baby back to the breast. You can find one here
www.iblce.org Just click on the "About IBLCE" button and the US registry pops up.
Best,