My fingers are too short to reach my cervix. But my boyfriends aren't and he said he felt a hard knob. And that something was hurting his penis during sex. This is the first time he has felt this way and I've had my iud for 2 months. How do I know if it's out of place or if he is just feeling the strings or something? Kinda scared to have sex again. Someone please help!! I don't feel anything wrong. I do get random cramps but I thought that's just my body adjusting.