Question about getting someone pregnant

I unfortunately appear to have gotten someone pregnant 7 or 8 weeks ago. I am not interested in her and she is very emotional and had a horrible temper. We talked and she is getting an abortion but will only do it at a very expensive hospital in LA. I feel like I am being extorted. I have paid over $3000 and she wants $1500 more for hospital time she went in but could not have the procedure done because she was upset with me. She threatens me frequently about taking me to court. I am not sure if I …