Am I pregnant or just experiencing imaginary pregnancy symptoms?

Katie

Hi ladies!

My ovulation was on August 17 and I have been experiencing several pregnancy symptoms the last week. These symptoms include cramping, bloating, mood swings, fatigue, frequent urination, mild nausea, acne, gas, and I just had a little spotting today, which was brown and then light pink. I have not spotted since earlier today. The app tells me my period is due in about 4 days, but my period blood is never brown. I took a pregnancy test last week and it was a very faint negative. Then I took one last night and it was a strong negative.

Why am I feeling all of these symptoms that indicate pregnancy, but my tests are still negative?