Late?

Mackenzie
My period is late. About a week now. I was at the doctor monday and the pregnancy test was negative but still no sign of my period, my cervix is high and hard to find (according to the invasive vaginal exam she gave me tmi I know) 
I've been irrationally angry, had some light weird abdominal cramping and my right breast as literally doubled in size almost overnight and my nipples hurt like crap. 
Sound like pregnant? When should I test again?