My inner nodes have alternating nodes

What does it mean when your inner nodes are growing alternating nodes,, is that a sign of maturity,, im 5weeks in veg,, bagseed,, sativa I believe,, small plants too ones 10 in ones 8 in, the biggest has been topped

Alternating nodes are indeed a sign of maturity.
(This used to be the start of "veg", but these days veg starts from first true leafs.)