Could My Girlfriend Be Pregnant If We Had Genital Rubbing Without Penetration On And Her Periods Are Now Late?

Hi, on the 17th april i had fingered my girlfriend for the first time and had rubbed my penis on her vagina for 6-10 seconds but didn t put it in. Her last period was on the last week of March which Carried till the first week of april. She was supposed to get her period on the last week of april and may but still hasn t gotten her period. We re really tensed about this situation. Is she pregnant??