You don't have to as she will have an automatic entitlement as she is your spouse. However, you can protect you home, if you put her on the deeds and ask your lawyer to remove what is called the "survivorship clause" it will split the house between both of you and will provide you with additional protection if someone requires care.
I shall provide you with a helpful link that will assist you in finding a solicitor/representative near your local area. This will provide you with someone nearby your area who can assist you if required.
I hope this information proved helpful. You will find a local solicitor who deals with these matters on the law society webpage which is as follows;
https://www.lawsoc-ni.org/solicitors (N. Ireland)
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