Burning while urination is a sign of vaginal infection / urinary tract infection.
Diabetes increases risk of UTI, due to high
sugar in urine.
It is not a symptom of pregnancy.
Next Steps
do urine routine test for pus cells.
syrup cital 2 tsp in 1 glass of water twice q day, will decrease burning sensation.
improve genital area hygiene.
increase water intake and consult for antibiotics after urine report.