18 dpo BFN Perimenopause?

Sooo am I going through perimenopause or what? I’m 41 btw. My period has been doing what it wants for about a year. She may come early, last a few days (when I’ve been a consistent 7 dayer every 31 days) to coming every 26-30 days but what she hasn’t been is LATE. So I’m supposedly 6 days late. I took a pregnancy test which was a clear BFN. I wiped last night and it was pink so I’m like ‘Ohhh there you are 😒 *major side eye*’ so I’m thinking this morning I’d be full on day 1. And NOTHING! I’m thinking these apps and Mother Nature be playing with my emotions and I don’t like it.