I noticed two tiny spots of dried blood on the toilet seat in the office toilet. Without much thought, I used a tissue to wipe off the dried blood, threw it into the toilet and proceeded to sit on it. When I was done urinating, with the same hand, I used tissue to wipe my private part. Thinking back, I'm now really worried and I'm quite desperate to find out if I was at risk of exposure, since I'm currently 35 weeks pregnant.