What the hell is going on? I need advice.

Shawnna • Currently Prego with baby #2. TTC for 11 months before bfp. I have one daughter she is 8yrs old
Ok so AF was due on 19tth.. She's still not here. Tested yesterday got a BFN.. I either need to be prego or get my AF.. Whom of which is always on time. Idk what's going on. Should I test again today?