Indeed.
In the Old Covenant, babies were circumcized at three weeks to identify them among the people of God, with their personal confession to follow. Col. 2:11ff calls Christian baptism a "circumcision". Both are a holy seed -- initiated and performed by God thru man.
The Spirit's activity in the womb of the mother of John the Baptist -- Luke 1:15 -- shows the Holy Spirit can indeed move thru His power to plant that gift of faith in infants.
We tend to think only in rational ways to receive Jesus. Yet Jesus Himself said it is the truting relationship of a little child that is saving faith (see Luke 18:17).
That's one week (on the eighth day). Shame on you.
I thought that Jewish circumcision came 8 days after birth?