There is not a straight forward answer…it depends.
Stress has a way of fluctuating your weight. We recommend young ladies have their dresses brought in for a fitting 2 week minimum (but not greater than 4 weeks). This will insure that there is adequate time to make necessary alterations and the fit will be perfect. At Helga's, we will discuss your concerns as well as provide our expert opinion and recommendations.
If there are major modifications needed on your gown (other than general hemming, straps, and waist), please bring it in for a fitting to discuss with one of our staff.