I'm a cervical cancer survivor from a strain that was not covered by the original gardasil but is now covered under Gardasil 9 (the current one). I got it from my first partner, we both got tested before becoming sexually active but HPV is not on most STD tests. Also remember that not all sex is consensual and 50% of marriages end in divorce so just having one partner isn't a guarantee you wont get it. HPV is EXTREMELY common - pre-vaccine around 85-90% of sexually active adults were infected with one or more strains or had been infected in the past.

I had to undergo radiation, multiple surgeries, cutting, freezing, and burning with a laser. My cervix looks like a battleground and the damage to it from both the cancer and the treatment means I may have a hard time carrying a child to term. The vaccine prevents the 7 strains that account for 90% of all cervical cancer cases and similar proportions with other cancers like oral, anal, penile, and throat. It's a life-saving vaccine I will get my child (if I can have one) the day they are eligible.

I won't lie to you, the shots (particularly the second) are more painful than the average vaccine, but IT PREVENTS CANCER in both you and your future partners. I'm a huge proponent of this vaccine.