I get what you're getting at, that we should trust the experts who have professional experience with a problem, but on the other hand, he didn't say how he arri

I get what you're getting at, that we should trust the experts who have professional experience with a problem, but on the other hand, he didn't say how he arrived at that 10% number, and we don't know if his opinion is an outlier among medical doctors. And we do know, because we're witnessing it, that his statement is being amplified by non-medical professionals for the precise reason that it would be urgent and shocking if true. A lot of questionable information about Covid was amplified this way, because "a doctor" said it. Before we take the information at face value, we would expect some kind of support for his statement from other professionals. There are scientists who study the factors relating teenage pregnancy, as well as advocates for sexual abuse victims who uncover and publicize facts like these. If the information is something that has never been formally studied but is something that doctors "just know," there are tens of thousands (at least) of medical professionals who have regular contact with different populations of pregnant teenagers in the United States alone. If there's a widespread suspicion that the number might be 10% or more, that would mean a lot more than one doctor making an off-the-cuff remark in the audience of a law lecture.