Not sure what to do

Chelsea
im not sure if i should be taking my birth control im worried. I have 3 days (includs today) before my period but i have to stop it i have major important event to go to so i wont know if my period shows up or not should i test now or wait to test when my period is ment to be, i had the pink blood when i wiped (tmi) a week ago. My boobs have been sensitive on and off too. Any advice??