Dropping milk

Danielle

My son is nearly 9 months. He has always been good at drinking 7oz bottles but lately I’m lucky if I can get 4oz in him. I am doing baby led weaning with him so I don’t want him to drop his milk feeds too much as it’s hard to tell how much he is eating with him feeding himself. What are some of your milk routines for 9 months old? Any help would be really appreciated.