Help…IDK what is going on

I had a clear pos LH test on the 25th, signature temp drop 26th then rise on the 27th, dipped again on the 28th and have been at a steady rise. Had another peak on the 29th with no temp flux and LH has been slowly declining but I took an FRER today (because of first peak and being 6dpo from that plus feeling off ) and there seems to be a second line, there is color in person and you can kind of see in the pic. How can I get 2 peaks and have a + test during the second LH rise? I am so confused. I have 3 singletons and a set of frat twins so I am not new to TTC but this has never happened. Anyone have any insight?