POSITIVE THEN NEGATIVE??? HELP!!

Caity • Mommy to Lincoln (9) and our IVF twin 4 year old boys Cason and Camden 💙💙💙 Expecting #4 2025 naturally and a total surprise!! PCOS, endometriosis as well as right tube is blocked following lap surgery.
So I have PCOS and sometimes will go months without a period. I'm currently on cd 88. So I've been having symptoms I had with my son (bloated, feeling sick, exhaustion, cramps) so I took a test last night and it appeared to be a faint positive within the time frame. Then I took another this morning with fmu and it was completely negative. Anyone had a negative after a positive?? Pictures of last nights positive.