the pill...

Hi everyone,
Pretty stuck right now. I'm on the pill at the minute and have been for 2 years, never had any issues with it whatsoever but in the space of 2 weeks I've come on really heavy twice. I'm getting all the symptoms of it, cramps etc... I don't know what to do. I take it on time all day everyday like clockwork.
Anyone else had problems like this? What could it be? 😔😔
Thanks in advance xx