Surprising Pap test result

My first Pap test revealed that I have HPV. My fiancé has slept with 3 people before me and I've slept with 5 before him..we don't know who gave it to who or if we both had it. He thinks I gave it to him and he might be right..if so I feel awful. He's not angry about it because he knows he only wants to be with me and we have a baby together but I feel terrible. I never thought I'd catch an sti