Leap 3 ... early?

I’ve been reading all of the posts here about the leaps, and I’m wondering if leap 3 can start early? My LO is 10 weeks and has been out of control since yesterday. EXTREMELY fussy and clingy, doesn’t want to sleep, doesn’t want to be held by anyone but me, doesn’t want me to put him down, refuses his bottle and wants my breast instead. I’m worried he’s not getting enough calories because I’ve struggled with low supply since his birth. I make max 20-30 ml every 3-4 hours.