Warts or skin tag. With him on 24th aug?

I've been having unprotected sex with my fiance since a year&half now.Last year I found out some brown skin tags in his groin area.He lives in Australia,so it was off & on after 6 months or so for us to make out when he was here in India.  10months went by,he was in Aus,I was here. So of course no sexual activity happened during these 10 months.Until he came back,we did it on 24th Aug & then 3rd sep this year.I noticed his tag has gotten bigger & it looks like a wart to me now.He consulted a doctor who said it could be a wart or a skin tag caused by tight clothings. I'm scared for myself.Cuz I've heard warts are the result of hpv infection.Does that mean I've been infected too? Ive no symptoms.Also Ive Got My 3 Hpv Vaccine Shots When I Was A Teenager 6-7 Years Ago. What should I do Now?I also Suspect Ive Seen small swollen Lymph Nodes On His Face And Neck sometimes. He Says Its Acne.I'm scared! Where and what all tests can I do for myself keeping in mind I had sex with him on 24th aug?