Normal for symptoms to fade??

So this would be my 3rd pregnancy, but 2nd child. I am pretty in tune with my body, so I instantly noticed some early pregnancy symptoms when they began around earlier this week. I was having symptoms that I had only ever had when I was pregnant with my first which is TERRIBLE acid reflux (only at night and I have avoided spicy foods), increased random anxiety (heart racing/hot flashes/stomach dropping like a roller coaster), hit with waves of hunger nausea like I haven’t eaten all day, and CONSTANT digesting/gas bubble movements below my belly button. ALL GOOD SIGNS, BUT now I feel like I am experiencing the symptoms less and I am still getting a BFN 😭 on the app my AF is due tomorrow, but last month my AF showed on the 16th. Should I be worried that I am out?? 😭😭