Started birth control pack 3 days late, only waited 5 days of taking pills to have unprotected sex took a plan b about 34 hours after, should i be ok?

Safe Sex Scare: BCPs are often not effective in the 1st month, so the 3 days off on starting is not the main issue. Plan B usually works and most women are most fertile around day 15, so you should be "OK", but there are never guarantees. If any ?s see your gyn or clinic. Most important neither BCPs or plan B prevent STDs. If you are not sure your partner is safe, this is something you should be checked for.