Need advice before i lose it

[Rzyna]

need advice before I lose my mind. When i first started my period i had crazy irregular periods. That has normalized enough now that u know when to expect it. Last month june 3rd I was on my 4 day of my period (usually lasts a week) we had unprotected sex and he had finished inside me. Its june 13 2017 i was supposed  to start my period last week on Monday. Nothing. All i have is big sore breasts and cramping.took 2 tests both negative. My periods are quite painful so i really feel the cramps as if i were to start my period but nothing. I have a really faint pinkish color discharge only when i wipe you can hardly see it. Any ideas ? Im freaking out. Never this late...