Milk dry up

Hey ladies, How do I know my milk is dried up or I’m done producing? My baby stopped taking boob at six months. I been exclusively pumping. I would originally pump about 6oz total each session. Now it’s dropped to 1oz total and my boobs don’t hurt like they used to before. But when I pump I still produce milk. She’s about to be eight months next week. I don’t mind stopping, I just don’t know how to tell if I’m drying up. I always had big boobs so feeling heavy has always been a norm. I can’t tell the difference lol. Does anyone have any insights or advice?