What is going on...

k, ovulation peaks were 26th 27th of oct we had intercourse both nights and again on the 5th and 6th of nov...period supposed to start on the 9th of nov. Never came, had just a speck of blood on the 11th and then just a speck when wiping the evening of the 13th...minimal cramping wich is slightly unusual because i never cramp and still no AF....nausea started last night like crazy....all negative pregnancy tests.....? Help im REALLY hoping lol