.... Help?

Ok I know it's not talked about and it might be taboo but I'm in a lot of pain on my left side I had a faint positive on a test a few weeks ago but the positive disappeared so that was that then my period started 2 days ago and I was like ok well days 1and 2 seemed like a normal period but yesterday it was just spotting and really crampy then today again spotting it honestly feels like something is stuck in my vagina and my left side hurts so bad I feel like I'm gonna puke I don't know what's going on it just randomly started hurting worse than the cramps I can feel it in my back and my anxiety is screaming that it may have been an etopic and not just a faulty test or could this be a full blown miscarriage or something all I know is I thought it was just a period and now I'm in a lot of pain I don't have medical insurance so I can't go to the hospital I just need to know what to do