Hi,
You have missed your periods for 3 mths and all HPT tests done showed negative result. OK. Fine.
Assuming that you are not pregnant, do a
blood test for
pregnancy to have a final conclusion.
Now you are c/o pain in the vaginal orifice while sitting for a long time in certain position and fowl smelling thick white discharge on and off. There are 2 problems to solve:
1) if not pregnant, why you did not get your periods for the last 3 mths. What was your previous h/o menstrual cycle. Whatever may be the history you need 1) USG 2) Hormone analysis 3) basic blood tests to rule out
anemia etc., The treatment as per the report. If there is no obvious causes
contraceptive tabs. continuously for 3 mths may be useful
2) Fowl smelling thick white discharge - The above said investigations may reveal the specific cause for your complaints, some times medications may be needed. Hygiene plays a major role
You will be alright within a short period.
Best wishes