Mirena and unknown pain

Hi

I'm currently on my second mirena coil which was changed in May 16. All has been fine since it was put in. For the last month I've been getting terrible cramps after intercourse and since Mon I've had constant cramping. I've not had a period in about 8 years. Has anyone got any advice? I'm very tempted to remove it but waiting for my other half to be fully happy about TTC.

Any suggestions welcome xxx