To begin with, I am a lot underweight for my age. My last period started at 7th August and ended on 14th. The next day and on 25th and 27th, I tried to have unprotected sex but penetration was not done fully and cum was not released into me but only may be precum might have entered into me while trying. And I am 7 days late for period as on today i.e. 15th. And since a week I have been having slight burning in urine, pain in the stomach, frequent urination and swelling in ankles and toes happens now and then but there is pain in legs and also white discharge. I took the urine sugar test, the sugar dissolved and also no white layer was formed when I kept the urine in a bowl for 4 hours. I did not take any other pregnancy test. Is there a chance that I am pregnant? If I am pregnant, can I take Mifepristeone and Misoprostol as early as now to abort that and to have period? Please help.