hi doctor. i had a dark thick vaginal discharge for like 2 weeks and this was after i had sex. this was 2 weeks before my periods. i did not go to a doctor or take anything for it. then on the 1st i started my periods but i was early as i was suppose to start on the 3rd. also sometimes i have pains after sex on the left side like below the adbomen. the pain does go away after some days though. i had a pap smear in march and everything was ok, i was also treated of yeast infection that same march. im 27 years old and my weight if 54kg