Ectopic pregnancy?

Hi ladies! To make a long story short I thought I had a vvvvvvvfl yesterday, but started spotting red last night. I put a pad on and went to bed. Woke up to what looked like the start of my period so I threw in a tampon and went about my day. I’ve had a decent amount of red/brown bleeding today. Not enough to fill a tampon, but more than what I would consider spotting. I’ve got all my normal AF symptoms. Lower back pain. Cramping (not one sided though). Something in my gut just told me to test so I did and it was positive. Now I’m terrified this is an ectopic pregnancy especially with all the bleeding. Could this just be an early miscarriage? I would’ve assumed my test wouldn’t have been darker, but lighter if it was a chemical.