What could this be... fractured rib or bruised or what?

I went sledding the other day and I fell several times because the snow was like ice... My right back side on my ribs have been hurting.. Today is worse than yesterday.. It feels sore and everytime I cough or clear my throat it hurts and feels excruitiating(sp?)... I am debating going to the dr today.. Any suggestions or ideas of what this might be?