How long before your milk dried up for good?

[NCBabyBoy]

I ebf DS until he was 10 weeks and then expressed and combi fed for another 3 months. It's now been at least 3 months since I last expressed, but I get beads of milk on my nipples if I give them a gentle squeeze. When will this stop? I'm half tempted to see if I can get my supply going again, just out of curiosity haha.

I fed DS1 to 16 months and DS2 to 11 months and there was still milk a year later!

I stopped 18 months ago and last month had the teeniest little droplet from one nipple when I squeezed it (was weirdly curious!)