I am not sure over 300,000 women a year in the US is 'almost no'. That sure looks like many to me. With an estimate of somewhere in the 7-12,000 a year having children as a result. And something like 1 in 6 having been raped in their life time. Yes those are estimates, but still a significant number.
Edit Source: https://www.rainn.org/statistics/victims-sexual-violence