I got a positive test a week before AF was due and then another positive when AF was 2 days late. Both were faint but unquestionably there. I am now 11 days late (never been more than a day late in my life, not stressed, TTC but was taking it easy this month) and have been getting negatives the last few times. I “know” I’m pregnant but I’m discouraged by the negatives. If a chemical pregnancy would have occurred, how long would it be before I start bleeding?