Leaking...

Katelyn • Married mom of 4 girls hoping that this last baby we have will be a boy but if not we will love a girl just as much!! :
Im 23 weeks today and i have been leaking breast milk since 21 weeks.. I am on baby #5 and have never had any leaking of breast milk before the baby was born.. Is this normal?! Any moms in the same boat as me?!