18% of 1,3 million is 234000. That is 1/3 pregnant teens, about the same as in adults.
17% of all the abortion in the US (1,3 million a year) are by teens.
Abortion is not dangerous for teens or adults. Teens have a tendency to have later abortions due to the fact that they don't know their bodies very well and can't read the signs or are in denial but...
Out if 1,3 million abortions/year in the USA, 17% is by teens.
As many as she needs.