help???

i left my bc pills in the car for like 6 hours one day and after that i had protected sex with my bf (condom and pill), 3 times after that. i got a new pack a few days later bc i started to think that pack wasn’t good after leaving them in the car and started the new pack on a friday instead of a sunday like i usually do. i took the new pills basically perfectly this whole pack and i’m taking my 3rd sugar pill tonight. when i usually start my pack on a sunday, i always get my period on tuesday’s during the 4th week. in this pack i took my first sugar pill friday and it’s sunday and i haven’t started my period. i have a little bit of brown discharge but that’s it....could my period be different because of the messing up my cycle?