Hi mummies would you wake up every 3-4 hours in the middle of the night to pump (to avoid engorgement) even though your LO is still sleeping?

Yes ... but as for me I hand express. To prevent engorgement and allow the breastmilk to continue to produce. The breasts will automatically produce more breastmilk when you clear(latch/pump/hand express) often.

I did To continuously increase supply

Yes for me. Otherwise would engorge

Yes! Otherwise it will leaks too

Yes of course

Yes . If u wanna reduce, then u gotto slowly increase the time in between pumps