Weird cycle

I have been feeling like I’m going to start my period for 2 days now. Cramping on and off, and it feels like I’m about to start bleeding but when I go to the bathroom to check nothing is there. I don’t have any other symptoms. Usually my cycles are 28-32 days. Today I am on cycle day 33. I will take a test when I get home, I had to order more. This is making me get my hopes up, deep down I feel like I’m not pregnant :/ has anyone else been through this?