My last period was sometime during the first week of Nov not sure what day. It lasted three days which is weird because my periods last either 4 or 5 but it was my a big deal to me because as long as I got it lol I had sex a couple days after October 30th and then the 11th of November and again on the 16th. Since then my period hasn't showed ...I took a pregnancy test (First Response) I followed the steps correctly (I think) but there was no second line and if there was I didn't see it. I don't know what it could be? Any suggestions or advice? I've only been nauseous, had really sore breasts, not much of an appetite, heartburn, severe fatigue, but are all those enough to be pregnant?? Maybe stress??