Help i got my 16yr old gf prego?

help! i got my girlfriend (16 is the legal age of consensual sex in my country, lucky for me ae?) pregnant but her parents are mad catholic. is there a way we can do a secret abortion so her parents don't find out about this? ive heard of people using a coat hanger or knitting needles but does that actually work, and if it does how do you do it?