Maybe because they didn't know if they were infertile before the vaccine, as some only find out when they decide to start a family.

I didn't see anything that said the vaccine caused the infertility so much as they discovered they were infertile after having had the jab.

Edit: looks like the "official" story is that there was a database glitch and stats were underreported for 2016-2020. If you don't believe that the military got a special batch, you can look at global trends to see how they compare.

Maybe because they didn't know if they were infertile before the vaccine, as some only find out when they decide to start a family.

I didn't see anything that said the vaccine caused the infertility so much as they discovered they were infertile after having had the jab.