What should I do about the family problems caused by my husband's sisters, and about my husband hitting me and expelling me from the home? Should I ask for a divorce, and what are my rights upon divorce?

Your husband is unjust to you and mistreats you. It is your right to seek a divorce due to harm, and in that case, you are entitled to all the rights of a divorced woman. He must provide for you if you are pregnant and for his child in all circumstances. Mediation is advised to reconcile between you, or to agree on a divorce if reconciliation is not possible.