Im not sure what brand you are on, but this is what I found in my Femcon packet:
You have 2 choices of which day to start taking your first pack of pills. (See DAY 1 START or SUNDAY START directions below.) Decide with your healthcare provider which is the best day for you. Once you have decided which day you will begin taking your pills, immediately do the following: remove the Brief Summary from inside the pouch and look for the attached day label sheet; peel the label from the sheet which has the start day printed on the left hand side; place the label on the blister card over the pre-printed days of the week. Take your pill daily in the order indicated by the arrows on the blister card illustration shown above. Pick a time of day which will be easy to remember and take your pill at the same time each day.
DAY 1 START:
1. Take the first "active" white pill of the first pack during the first 24 hours of your period.
2. You will not need to use a back up method of birth control


Therefore, if the above is true, and you did take the pill on the FIRST day of your period, you should def be fine by the fifth.
On the other hand, if you took the pill on the Sunday after your period started, t(and this is your FIRST pack of pills), then you should have waited 7days to be unprotected

I'm having the same problem. I've had unprotected sex on the 3rd day of taking the pill (Levlin Ed) and the instructions suggest 7 days...should I be taking the morning after pill?