Concerned about pregnancy and used ECP.

We didn't have unprotected intercourse. We didn't even had penetration all I did was fingering. I am worried if somehow the precum might get attached to my finger and might pose a risk or pregnancy. I did wash my hand before fingering but with running tap water more like just dipping in it. We did this on 8th of july in the evening about 6:30. Her last period was from 3rd june to 8th june and her cycle is irregular but mostly 35 days.She often has late periods then the expected date. In this case the expected date for her periods was 13th of july.She was having minor cramps before hand on 8th of july in the morning and even after intercourse she had cramps that were coming and going.Today on 10th by 5:05 she took an unwanted 72 almost 42hrs after sex .There are no side effects like vomitting etc so far. What are the odds for pregnancy and since we had 5 days before estimated date of period was it in safe zone. Today before taking ECP she was having cramps with thick whitedischarge