Am I crazy!?

Olivia 💙💖💙

I’ve been experiencing early pregnancy symptoms for the last week and a half. Especially sensitive nipples and even little bumps around my nipples.(Montgomery tubercles) I keep having a strong feeling I’m pregnant. AF was set to start Monday and she did, so I thought. I only bleed Monday, Tuesday and part of Wednesday. My periods are NEVER that short. And Wednesday was mainly a brownish color. Was that implantation bleeding? Took two tests before the bleeding and BFN and took test Wed night also BFN. I don’t understand. Is there a chance I’m still pregnant? I’m around 14 dpo I believe. Also been experiencing nausea off and on and cramping but breasts are not sore but bumps still there. What is going on??