Three months is usually enough time to prepare a wedding dress. Most wedding dress designers do require a minimum of 10 weeks for a custom order, so it is possible to find a decent dress in three months. If you are hoping for a custom dress or a dress from a popular designer, you may want to plan further in advance to account for additional time needed to order the dress and have it altered to fit. Regardless of the time frame, it helps to begin the shopping process with an idea of the design, style and budget in mind so that you are able to narrow down your choices before you start shopping.​