my bf was fingering me and we dont remember whether his hands were wet from precum ,is there is any chance of me getting pregnant , i took an i pill after 4 5 hours and another one after 12 hours ,and also i had irregular periods before the incident my periods is due on 24 feb it happend on 19 feb, should i take regestrone also to be sure ????(regestron was advised by my doctor for regular cycle before the incident )