When did your breasts start leaking?

I’m only 22w and frankly I thought I had more time. But this week, I’ve consistently woken up to small wet spots on my sheets/jammies.

Is it normal to start around now? I thought it would be third trimester at least. Does this bode well for my supply down the road? How will it change between now and when I deliver?

I am just now realizing this is something nobody has told me about.