Resorting to abortion due to a dispute between the spouses
What you have done is an abominable act and a sin because it is not permissible
to have an abortion even if your husband treated you badly. You have to repent to Allah (may He Praised and Exalted) of what you have done, feel remorse for your deed and have a strong determination never to do it again.
You have to repent to Allah (may He Praised and Exalted) of this bad deed; because it is not permissible to be the reason for an abortion. It is considered a major sin and you have to pay its Diyah (blood money) and offer a Kaffarah (expiation); that is freeing a Muslim slave. If this is not available, you have to fast for two successive months. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.