TTC while irregular

Hi everyone, so I need some input. So I am very irregular, my last period was on August 15th haven’t had a period since. Which I pretty “normal” for me. For a while I was doing LH tests but I was finding I was having multiple peaks and it was discouraging to me. Last Monday (10/25) I was apparently 15dpo, with cramping, back pain, tender breasts and on Wednesday (10/27) I had some pink mucus after wiping. The pink mucus only happened once and because of it I tested my LH and got the highest peak I’ve ever gotten followed by negative HCG test. Nausea started on Saturday (10/30) along with the above symptoms. I had a dr apt yesterday for unrelated symptoms and I asked for a HCG test which was negative. I’m just lost. Not sure if I’m having PMS or if I finally will get my BFP. Thoughts? #ttc