40 yr lady went for IUCD contraception has increasing pain and pelvis discomfort

40 yr lady went for IUCD contraception has increasing pain and pelvis discomfort a few days before her menses begin and pain relived thereafter.diagnosis- congestive/ spasmodic dysmenorrhoea?

Congestive

But in congestive pain remains even after menstruation…?

Congestive as pt complaining is 40 years old , it is beginning before menstruation