Frustrated !!!!

Halie

12 DPO and supposed to have my AF start on the 21st I’ve been cramping and stomach feeling weird since 9DPO which never happens it’s always the day of my AF and I’ve been having yellow cm (not a lot) a lot of gas , and I’ve been taking folic acid and I’m soooo tired all the time and mood swings and a little nausea and dizziness here and there . I took a pregnancy test this afternoon another BFN i haven’t done a morning i keep saying I’m gonna wait to see if my AF comes but then i get impatient i never feel any of this with my AF so I’m confused and feeling odd and frustrated ... does any of this sound familiar and you ladies get a BFP?