Had sex on the 3rd and 4th of November. I ovulated on the 6th of November. I've been having many pregnancy symptoms which I've never had before. Most of the times, it was too early for my period. I had some very faint drops of brown blood about a week before my period was due for about a day. I wanted to wait until I missed my period, then take a test. I took a test 3 days after it was supposed to be due, and it was negative. I took another one today, which is 7 days after, and it is also negative. Should I test again in 2-3 days, or another week? I used the dollar tree tests. Should I try another brand of test? Should I inform my doctor? I figured if I was pregnant, it should be picked up by now.