Hi there...I can understand your concern. The only way one can get
pregnant is if the sperm comes in contact with the ovum in the fallopian tube. This mainly happens through intercourse, when the semen is ejacualted in the vagina. But rarely it can happen through hands coming in contact with the genitals(very very rarely). But if she is still worried she can take a urine
pregnancy test 1 week from the day of intercourse. Also she can consult an obstetrician for further evaluation or queries.