Hi I'm 20 years old and have missed my period by 12 days. The latest it has ever been is a day or two but this time feels different. I've been having white milky discharge starting a week before my period was suppose to be due. My last period ended on 10/31 & I had unprotected sex on 10/29 & 10/31. On the day my period was due I had light spotting during sex but only for a few minutes. I sometimes feel nausea but for a short period. I can't really tell if it's in my head though. I've tested 3 times (11/15, 11/24& 11/26) and all times it was negative.

Test in a couple days if you don't get your period. Maybe go in for a blood test.