Early sign of pregnancy?? TMI

I️ started spotting on Saturday day and it has been consistent since, with this dark red/brown blood coming out of me. I️ recently switched birth control twoish weeks ago, but the pharmacist told me all the ingredients/ratios are the same, and it should not make a difference. Right before I switched BC, I️ was also sexually active and missed two days consequently because the pharmacy weren’t able to get the prescription from my doctor on time. I’m not supposed to start for another week! The spotting has been fluctuating, and when I️ think it’s almost done it comes back in a few hours. I️ how I’m not just freaking myself out, but the first thing google told me was that it might be an early sign of pregnancy??? Help