you cannot get pregnant from fingers. period.
if your bf tried penetration, it is possible to have leaked pre-c u m into you. I would suggest first taking a hpt as you are late for period already. There is a very low chance of pregnancy though. If the test is negative, maybe your period is late because of the worry! :)
If you're five days late, it would be a good time to start with an HPT using first morning urine. If it's negative and you're still feeling abnormal symptoms through the end of this week, then visit the doctor for a follow-up blood test for next week. But most likely, you've experienced a late ovulation, thus making your period late. It's probably on its way!