I’m not a doctor or medical expert. Before I started taking birth control personally had an extremely irregular cycle that could vary two weeks to two months between periods. I started taking the pill as much to try to regulate my weird cycle as to prevent pregnancy. Each woman’s cycle can be a little different. If you think you might be pregnant then the best way to know for sure would be to take a test. If there are other issues with your cycle then you might want to see a doctor that could give you more information on whether you might be pregnant or if everything is okay. Good luck.