BFN but i feel so sure im pregnant

AF is due the 19th but ive been so tired and having back pains. I've also been having intermittent cramps and heavy cm. What do you all think? any reassuring comments?

UPDATE: No af so far and the day is almost over. Still BFN 😭

todays symptoms: sensitive nipples, bump on nipple, back pain, cramps, tired, also pretty high cp for this time of the month and HUNGRY! ( but then again i just love food)

Good signs: had a student ask today if i had children. i replied " not yet" and she said "well you will soon and it will be a boy". I only pray there will be a little bean in there!