Weird discharge? Tell me I'm not pregnant

Ariana

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Hey all. According to last months cycle, I should be starting my period any day now. I haven't felt any symptoms I usually do before I start. But for maybe the past 2ish weeks I've had discharge like this. Ranging from a dark brown to just a little bit of brown in egg white discharge. I've never had this kind of discharge so heavily, and I had protected sex about 2 1/2 weeks ago. I doubt I'm pregnant but I'm just a bit concerned as to what's going on with my body.