ughhh okay Help?

Katy • Married to my high school sweetheart ❤❤ And a momma to a furry 4 legged love bug.

okay so quick over view. im terrible at taking my pills. so a day or two after my last period (af started jan 25 ended jan 29) we had unprotected full blown sex lol. anyways facmst forward a week i had some spottin VERY VERY LIGHT spotting only when i whipped (implantation bleeding i thought) then come feb 15 i had an ultrasound for unrelated things and no sign of pregnancy other than i had a very thick endometrial linning (18mm thick) fast forward, ive had a few symptoms, nausea fatigue but no breast soreness (which is a huge AF sign for me), my breast are full though!! [ive even had these crazy vivid dreams of getting a positive pregnancy test over and ocer again] anyways my period start date came and went according to Glow im 19 days late. i waited till feb 25th to do a blood test and it was negative. waited

anothwr week for AF and its still a no show, so i tested again, and the pee test is negative. So now im sitting here with my symptoms and negative tests scratching my head in wonder. I feel off like something is off or something has changed inside me and yet I have no clue what to think. Anyone been in my situation and been pregnant or had AF come in roaring weeks late? whats wrong with me? TIA