side affect of IUD non hormonal

so I got the paraguard birth control 5 months ago and I haven’t had any complaints works great, just a little more heavier cramps when my period comes normal right well last night I had really bad pelvic/stomach pain and I was cramping bad so I slept it off this morning I woke up with blood on my panties and my period ended 2 weeks ago.. i’m calling my doctor for a appt but i’m scared 😥 what do you guys think?