When did my baby become a little boy?

i don't remember Kelvan being this little when i looked at pictures and said "oh my goodness he's a little boy!" But, as i put Brenton's 8 month picture into his month frame i looked at all the pictures from newborn-8 months and realized, he's my little boy. it makes me sad that my little baby is no longer a little baby (and i really do understand that when i look back in 5 years he certainly will be a baby still in these pictures), but he's a little boy. i'm just not ready, can i have some time back. i want to keep my little ones little. i want to be their hero/savior forever. i don't want them to not need me anymore. someday in the not so distant future, when i walk in the house they won't be all excited to see me. i love it. but for now, i guess i will love that my little baby is becoming a tiny man.