HELP PLEASE

Positive OPK 12/02/18, so should be 11(ish) dpo. Yet I got what I believe was a bfn this morning. I’ve had slight nausea here & there, haven’t been able to sleep like normal, waking up at 5-6am to go pee(which is unusual for me, the last time I did that I was pregnant) and off & on cramping since 6dpo. Does this all sound like good signs to anyone else?