S.W.
I got some feeding tubes from the hospital and put the milk in a bottle and force the tube through the nipple of the bottle, then it didn't leak. Attached it to my breast and let them drink from the breast and get supplemented at the same time. Ask at the NICU for some feeding tubes to get you started so that you can hopefully stop the bottles, but if he is not getting enough through the tube you will still need to supplement another way. It worked for me though.