Did you even bother to finish reading the paper you linked?
We concluded that an examination of the hymen is not an accurate or reliable test of sexual activity, including sexual assault, except in very specific situations. Clinicians who perform forensic sexual assault examinations should avoid descriptions such as “intact hymen” or “broken hymen” in all cases, and describe specific clinical findings using specific medical terminology.
We recommend that clinicians take into consideration that a hymen examination does not generally offer a high degree of certainty about sexual activity, with or without consent. We call on clinicians to: 1) avoid relying solely on the status of the hymen in sexual assault examinations and reporting; 2) help raise awareness of this issue among their peers and counterparts in law enforcement and the judicial system; and 3) promote fact-based discussions about the limitations of hymenal examinations with their colleagues and health professional students from all specialties that address the sexual or reproductive health of women and girls.
You really need to give it up at this point. Numerous people have told you and others that it’s not a reliable indicator of sexual activity. In fact, the paper states instances where an adolescent girl is CLEARLY pregnant they still couldn’t find evidence of penetration based on the hymen.
For example, in one small study of 36 pregnant adolescent girls, medical staff were only able to make definitive findings of penetration in two cases [27].
