Was it wrong to prevent my girlfriend from getting an abortion?

My (22m) girlfriend (21f) was a one night stand that ended up pregnant, she told me she was pregnant and I panicked and told her I didnt want to be a father so she should get an abortion. She cried and said she was pro-life and then i felt really bad and told her I would support her in any decision she would take. I looked up the risks of abortion and it just made me feel worse and worse so i told her I would be happy to be a dad if thats what she wanted. She said she was already making an appointment to get an abortion because shes scared of ruining her life. Then I told her we would be together and I would fight for us to be parents of our child and we could live with my parents and she said she hated me for making her change her decision once and was acting cold with me for weeks. Even though shes still willing to go through this pregnancy i still feel like she hates me. Was I wrong for trying to change her mind?