Nausea symptoms at 8dpo? Is it possibly a BFP sign?

Hi ladies, I'm 36yrs old & TTC baby #1 with my SO of 5yrs. This is cycle 1 and I'm just over halfway through my first 2ww at 8dpo. Feeling rather anxious and literally second guessing every single thing my body does, feel like a bit of a mental case! Plus I don't know if I am somehow creating symptoms! As in I'm actually experiencing them but I'm literally making them happen. I swear I have been getting mini waves of nausea the last few days, and I never feel sick, so it's really sticking out as a 'symptom' to me, but at the same time me thinking about all the possible symptoms could be making them happen?! My AF is due according to Glow 4/19, but I could be due 4/17 according to another app I have. I've also been cramping up a bit today which makes me think AF is coming, but 4 days before would be really early for me, I normally don't get cramps till the actual day she turns up. Know I should just wait it out and not second guess but it's so hard. Anyone that reads this thank you for listening!! I just needed to vent as I don't want to freak out my SO with my irrational TTC brain or tell my friends we are in the process. Baby dust to all of you, hopefully this month is our month xxx 💕💫✨