Sunburn Help Please/ Tan Lines

Help! I was at a bbq the other day and got sunburned while swimming. I even wore sunscreen, but I`m very pale and I didn`t even know it had happened until I started to turn red that evening.
I`m getting married in a month. I need advice on how to help eliminate the tan lines that will look horrible with my dress.
Are sunless tanners good? I heard they make you orange. Would they match with my skin or be obvious? What about spray on tans (mystic tan or airbrush) and does anyone know of any good ones in Nashville, TN?
If I went to tanning bed (something I`ve never done) would I just end up with the same lines just darker all around?
Help please. I want to have an even complexion without getting much darker.