After Escapelle, does there appear mucus indicating the nesting of the embryo?

Hi I had a ratio of 5 and 6 July condom after intercourse was empty but not cracked scared so I reached for the tablet the day after Escapelle from two relations passed about 30 something hours today is 13 and menstruation I should get about July 25 morning I noticed a very small amount of light blood in the urine and brown mucus on the insert and paper when I rub I do not hurt or any other ailments what it caused? Is it mucus that indicates the nesting of an embryo? I would add that now that I rubbed on paper appeared a large mucus of very red color and more blood also very dark red? What does it mean if I'm pregnant??????