This is interesting and relevant, when teaching his disciples to pray, after they requested his help, (Lk11-1), Christ tells them,
when you pray say… Our father…
He did not pray it as his prayer, but told them to say it. Thus he basically did not ask God to “forgive him his trespasses” coz he had none.
Wonder if he had some genious way of avoiding acknowledging guilt of sin in the atonement sacrifice you talked of ? i am willing to bet he did.
On furthur reflection for another 5 minutes from my last post, I think that Even as a good jew, who"came to fulfil the law and not remove it" Christ would not be breaking the levitical law, by not making a sin offering, for the simple reason he had not sin.
thus this suggests if Our Blessed Mother, had no sin, she would not be commiting a sin by omitting the sin offering of doves at the presentation in the temple.
this is tough to work out.
God bless.
m