Negative test..but missed period

I had sex November 5th.....I got my period around the Nov 18th...but during the month of december i missed my period. I've been under a lot of stress from finals and i got into a car accident and have been dealing with that during finals week and everything. During november i took 2 pregnancy test and both came back negitive. I have not taken one for decemeber yet. Do I have a chance of being pregnant???

[neasyc]

if the last time you had sex was the 5 nov and had a period 18  and test are still negitive i would say you are not pregnant it would show up my now stress can put ovulation off so that would put periods of

[valerie88]

Yeah I agree. It sounds like you have had a lot of stressful things happening to you lately and that can definitely mess up your period. Just to be on the safe side you might want to test again for this month. But I really think that your period is not showing up b/cuz of the stress. Which is completely normal.