Frustrated!!

13 DPO. Had spotting since yesterday. Took a Strip test last night and thought I saw a faint line. Woke up this am to more spotting, a little heavier but no where near what my flow is normally, plus spotting started 4 days before AF was due. Took a FRER this AM that looks negative. Just got home from a 6 hour hold and took another strip test that has a vfl. What gives? I had some uncomfortable cramping earlier that’s gone...now just a bit of pressure, so confused.

AM FRER:

PM strip test: