Who are you spending the rest of your life with; your mommy and daddy or your husband? Don't you think it is wise to speak to your fiancé about your living arrangements and financial future because HE is the one you will be sharing both with?
Although I understand your parents point of view, IF YOU WERE SINGLE, but you are planning a wedding and a future. HOW exactly does a second house fit into your plans?? What do your parents expect you to do.....buy a house right now, then sell it before you get married? No? Then what, are you going to be a landlady and be in charge of tenants and the maintenance/mortgage of a house? Do you really want to tie up thousands of your dollars for a down payment and closing costs to buy a house? For what? So you can live there for nine months?
Your parents are not thinking clearly. But, I suppose if you want to buy a house as an investment property and be a landlady while never living there, then that is up to you but do realize that when a tenant does not pay the rent, you have no income to pay the mortgage and it takes up to three months to evict someone in most cases.
I am wondering if you are mature enough to be even getting married. You should be talking to your future husband, not random strangers on YA about buying the most expensive thing you will ever own: a home.