Period 5 day late. Had protected sex 5 days ago. On birth control, accidentally skipped inactive pills last month. Home preg test negative. Am I preg?

Not likely. On birth control pills... means not pregnant, regardless of whether one takes or skips the inactive pills, as along as a new pack is started at the appropriate time and the active pills are taken at about the same time each day. "Protected sex" means not pregnant. "Preg test negative" after missing a period for 5 days means not pregnant. With 3 things meaning not pregnant, pregnancy is unlikely.