There was little semen on my bf's hand when he touched my vagina, no intercourse, today is the 7th day, i took 2 preg test -ve, possible pregnancy?

Very very unlikely: The possibility of a pregnancy without actual insertion of viable semen into your vagina is very remote, so minimal that some would say totally negligible. If you would like to avoid getting pregnant, ask a knowledgeable and caring Gyn for either an intrauterine device or a subdermal contraceptive implants which are the most effective long acting reversible contraceptives...plus use condoms.