Should my boobs be leaking at 36 wks , not producing yet ?

Yeah. That's normal.

some women never leak even while breastfeeding. and then some women over produce milk like crazy.

Okay because I want to breastfeed desperately .

I was leaking so much at 3 months ! Ive been breastfeeding my son almost 17 months. And will be tandem nursing when baby is born leaking or not has nothing to do with being able to 😄