5 days late

Avonna

5 days late with 5 BFN. I been having back aches but no pms symptoms. My cycle is suppose to be over tomorrow. And it says my luteal phase is 19 days. I don’t understand any of what’s going on but it’s like at this point I just want my period if I’m not pregnant. My ovulation day was 1/20 and I’m 18dpo I believe.