UPDATE: after 45 days of being late, I finally started my period! don't know why I was so late but I'm just finally glad I got an answer!

today I am 41 days late. I've missed TWO periods and I'm CD 73 but all my tests have been BFN. anyone get a really late bpf or am I crazy? I swear I'm always staring my period lately then I go look and nothing. I'm super tired all the time. my nipples hurt. cigarettes make me gag and hurl now... I just don't get it?