Implantation Bleeding❓/Symptoms/Fertility Window 2 Days🎯✅

My Last Period Was June 21-28th We’ve Been TTC Since Early June First Time No

Rush. I Have Been To The Doctor August 11th In Which I Tested Negative. The Last Time I’ve Tested Was About Two Weeks From Today (Neg). September 23rd We We’re Having Intercourse & Then Shortly Took A Nap After. When Waking Up Proceeding To Engage Into Round Two I Was Moist Of Course Yet, It Was A Small Amount Of (TMI) Blood. I Put On A Liner Then Went To The Store & Bought Small Pads Because It Had Literally Been That Long Since I Had A Period!! “Which Is Abnormal For Me.” It Was Not Heavy Very Light As In Spotting Not Filling A Liner/Pad; Light Pink/Red In Color For 1-2 Days. Decreasing In Amount On The Third Day September 25 It Began To Turn Brownish In Color. Although I’ve Been Spotting We’re Still Been TTC & After  Ejaculation 15-20 Mins Later I Feel A Bubbly Sensation In My Lower Uterus, What Could That Be?? I’ve Had Lower Back Pain, Headaches, Hard/Tender Breast/Bloating/Light Cramps Even Sometimes During Sex Which Is New. I’m Planning To Test Again Next Month. Could This Be Implantation Bleeding?? Did I Test Too Soon Before Implantation?? I’ve Gotten A Faint Line Before But My Last Test Was A Digital ClearBlue Neg. Two Weeks Ago Before All Of The Spotting. #DidITestTooSoonAugust??