I've had my period for over two weeks whilst on the pill fairly heavy bleeding cramping could this be purley due to stress as I take my pill on time my last pap test came back irregular results and due for yearly pap test in june please help worried!

Breakthrough bleed. Breakthrough bleeding (bleeding at the wrong time) is very normal on birth control. It happens in about 1/3 of users. Its no big deal and usually self corrects over time. If you are not satisfied or it continues to happen then consider using a different birth control method. It is a common side effect and does not mean something is wrong or that the pill is not working.