Scared and a little depressed

Kristen

So I’m currently 17 days past my missed period ive gotten 3 faint positives but a few negatives as well. This mornings my I woke up and found brown spotting it’s been this way for a few hours now it’s not getting any heavier. Getting some cramping on my right side only. Has any one had this happen? Could this be the start of AF or something else? Thanks for any insight and for taking the time to reply.