Well, I usually have a pretty normal paced period. It's usually at the end of the month. Except this past much, when it was pushed back towards the beginning of July, due to stress. Well, my boyfriend and I had innercourse on Aug 7th. I was expecting my period the next couple of days because I was getting all the symptoms of getting ready to start. Well, I never did start. Around the 11th or 12th I went ahead and took a pregnancy test and it showed up negative. It's the 18th now and I still haven't started. If i were to take another pregnancy test in the next couple of days, would it show up positive?