I apologise if this comes off as judgemental but I am genuinely lost for words on this.... I don't quite understand how OP wasn't aware of what birth control their gf was on, surely if you're going bareback that's a discussion you would have had? Also, the risk of injury/infection by incorrectly removing an IUD in such an aggressive way is a very real, dangerous possibility. I'm sorry OP, but you need to do better.