Have had my iud for 4 years

Tenea

So I’ve had my iud for 4 years now but we recently got married so we started getting into more playful stuff like using using anal toys I got one called the twist along with some sensual honey and it worked great but every since I’ve been in a ton of pain im pretty positive its my uterus cause the next time we went to get busy I was in agony like literally felt like I was being stabbed where my iud was and I went to check my strings but can’t find them at all could my iud have gotten dislodged