Antigone's one expressed regret seems to be that she will not be able to marry Haemon and be a wife and mother. Even though this makes her sad, she still will not repent of what she did by burying her brother because she believes she was following the will of the gods:
"For Death who puts to sleep both young and old
Hales my young life,
And beckons me to Acheron's dark fold,
An unwed wife.
No youths have sung the marriage song for me,
My bridal bed
No maids have strewn with flowers from the lea,
'Tis Death I wed."
"Thus by the law of conscience I was led
To honor thee, dear brother, and was judged
By Creon guilty of a heinous crime.
And now he drags me like a criminal,
A bride unwed, amerced of marriage-song
And marriage-bed and joys of motherhood,
By friends deserted to a living grave.
What ordinance of heaven have I transgressed?
Hereafter can I look to any god
For succor, call on any man for help?
Alas, my piety is impious deemed.
Well, if such justice is approved of heaven,
I shall be taught by suffering my sin;
But if the sin is theirs, O may they suffer
No worse ills than the wrongs they do to me."