You can leave the house and not come back and you may take the children with you unless a court order directs you otherwise. It may be inadvisable for you to leave the house without talking to an attorney. Leaving the house without a good reason may affect your alimony situation.
If you leave the house you may also be unable to return until after a court divides the property. This process will take considerable time and you may not end up with possession of the house after the property has been divided. The best advice is to stay in the house until after you discuss the matter with a lawyer unless your spouse is violent. If your spouse is violent you must take all steps necessary to protect your safety and the safety of your children.