You're right -- that is a lot.
But where does that 32,000 number come from??? It turns out that those are "self-reported" squishy numbers not hard numbers from police/hospital/medical reports.
Odds are most of that 32,000 came from abortion clinics and Planned Parenthood justifying their federal funding for Medicaid abortions. But since underage girls are the bread and butter of abortion clinics, odds are that those are mostly statutory rape pregnancies that should have been reported to the police as such but aren't.
A single flawed study, widely referenced, is the source of that number. It is based on a telephone survey. Anyway, I deconstructed the study in my post #58, this thread.