I Took Norlevo On April 29th After Unprotected Sex Then

I took norlevo on april 29th after unprotected sex then on may 5th we had another unprotected sex but i did not take the pill and now i have dark brown spotting for 3 days and im delayed for 3 days.my question is am i pregnant or just delayed because of the pill.if ever im pregnant will the pill would harm the baby