If you already contributed to your traditional IRA, and it does turn out that you are not able to take a deduction for it, then you make a non-deductible contribution. You can either recharacterize it (take it out and put it into a Roth) or roll it over into a Roth. I've never done either of those so you'll have to get more info on how to do that. Your IRA provider can probably walk you through it.