Thanks for your question.
If your periods are on time, you are on regular contraception
tests are negative the probably this not a likely cause in your case.
Please do a urine test ( urine detailed report) to exclude urinary infection or other urinary tract problems as a cause of your symptoms.Urinary urgency
is a very common problem in women. You should see a Gynecologist for proper investigation & treatment if urinary tract infection
is excluded. Doctor will examine you to exclude your concerns of trauma & may give you some medicine to control your symptoms.