Help?!pill prob?

it is my 1st month of taking yasmin. i have 5 pills left in the packet and i have come onto quite a heavy period! do i carry on taking it?? i took this pill for 2 years before i came off it to have a baby and it never caused me any problems, my baby is 8 months ago i decided to go back on the pill. i am confused as to why i have started bleeding. i would go see my gp but id have to wait a week or so before i could get an appointment. has this early bleeding happend to anyone else?whats the best thing i can do?