Could i be pregnant?

Hey ladies! So my bf and I aren't trying but we only use withdrawal. My period is not due till September 20th. My cycle is usually 44days and lately I've been feeling nausea, headaches, constant bloating, I go to the bathroom at least 3times in an hour . I've been constipated for a few days now as well , I'm sure its to early to take a test but its so confusing! I normally don't feel like this. And I just need to know