Hi, it appears to be the infection of the endomatrium, urinary tract infection
, or a small stone in the urinary tract
. or the infection of the intestines.
If you want to really stop the shots, you can use the pills, or an implant of the patch.
Otherwise you can try a course or antibiotics, anti spasmodics, for a week, just before the onset of these symptoms , and observe in the next cycle as well. Thank you.