Its been 53 days since my last period (november 5, 2014)and i'm 3weeks late on this month's period.. i had unprotected sex on the 12th of november ?

Pregnancy?: Its possible you are pregnant. If the first day of your LMP was 11/5, you would be about 7.5 weeks. However, there are other reasons that women sometimes miss periods. For example, stress, dieting and running a marathon can make you skip a period. A pregnancy test will help you clarify the situation. You can get a home pregancy test from a pharmacy without a prescription. Best wishes!