In the prologue, Antigone thinks that she is stronger than the king. Her pride is causing her to think that she is more powerful than she actually is
"Creon is not strong enough to stand in my way."
"Whatever you say, you will not change my will."
In scene five, Teiresias is trying to change Creon's will. Creon is too prideful and stubborn to see that he is doing wrong.
"Fool, adolescent fool! Taken in by a women."
In scene 3, Creon is telling Antigone that he will not deal with her because she is a lawbreaker. If Antigone let go of her pride she would never be in this situation.
"I'll have no dealings with lawbreakers, critics of the government"
In scene three, Haemon is telling Creon that everyone is scared of him, but no one will stand up to him. Haemon is prideful because he is the only person that will stand up to Creon and tell him how the people feel.
"your temper terrifies them-everyone"
In scene 3, Creon is telling haemon that he is dumb because he loves a girl. Creon thinks that he is too good for everyone and that he is the most powerful person.
In scene 2, Antigone confesses to burying her brother. She could have just said no, but she was too prideful and admitted that she did it.