Should I just give up?

Hi Everyone! I need your advice .. I am 13 days late for AF. She was due on 11/26 and although she didn’t come I did spot for a couple hours on 11/25, 11/26, and 11/27. I tested on 12/02 w/ a blue dye cheapie test and evening urine and I got a faint positive. The next day with a FRER and it looked like a faint positive but with a second opinion I was told it looked negative. I didn’t have any symptoms of pregnancy before I tested but these last couple of days I don’t know if they’re a sign my period is coming or full blown pregnancy symptoms (tender breast, nausea, headaches, pain from belly button to vagina, became very emotional like literally cried about a potato on a show, and peeing more than often.) I know most pms symptoms and pregnancy symptoms are the same but I don’t want to waste anymore money buying test if I should give up. Please if you can give me some advice on what I should do at the point.

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