I am seven weeks late ( one month and three weeks) , my last period was on Oct. 28 and it started Oct.24 on time just as usual. But on Nov. 19 i had sex twice that day once with a condom but the second time we did it with a condom but right before he came he took it off and he did the pull out method. Then on Nov, 21,24 we had sex each time we used a condom and he never took it off. I was very stressed, to point where i felt like i had knots in my stomach but stress has never thrown me off before, could that be it? I have no symptoms Im my normal self just stressing over school and weight thats it. My period should come Dec. 20 or the Dec 24. I have taken two home pregnancy test both came back negative. I took my first one in the middle of the day and my second one early in the morning. Then I went to the doctor and that test was also negative. My boobs dont feel tinder, I'm not super hungry, I don't have cramps, my back doesnt hurt, i sleep a lot only because I'm up all night doing home work like up until 4 or 5 sometimes but It like ill go to sleep at 5 a.m. wake up at 9 a.m go back to sleep 9:30 a.m. wake up around 4 p.m. then im up through the day sleep but not to the point im going to sleep anywhere . I'm no moody I get irritated only because school work. Am I pregnant? Is my stress causing my period to stop? Is the baby hiding? Could the stress be blocking my symptoms?