this morning i woke up and went to the bathroom and there was dark blood all in my underwear. im on birth control (ortho tri cyclen lo) and am not supposed to get my period for 2 more weeks so i have no clue what this is and its freaking me out. i also woke up with a sore throat. anyone else have the same problem???

this morning i woke up and went to the bathroom and there was dark blood all in my underwear. im on birth control (ortho tri cyclen lo) and am not supposed to get my period for 2 more weeks so i have no clue what this is and its freaking me out. i also woke up with a sore throat. anyone else have the same problem???
1. call your doctor
2. have you taken any antibiotics lately?
3. Have you forgotten 3 pills in a row?
4. Have you been injured in the area of your uterus or Abdomen?