Typically hand sucking with LO has meant that it's nursing time. She turns 3 months old today and is doing great. I'm thinking that the meaning of it is changing now as she's sucking on her hands much more often (without the fussing accompanying it). I think she's just sucking her hands for the enjoyment of it now!
Is this the age that you found that hand sucking increased due to discovery rather than hunger? I'm not saying that it will be completely replaced, I'm sure it will still mean hunger as well.
I need some back up so that I can get DH to still hold her when she hand sucks. It's not ALWAYS a reason to pass her off anymore!