I need some help ! I had sex July 28, August 2nd, August 3rd and August 5th. I was due for my period July 31st, I did not start it until August 5th (I have never ever been late) and this was not a normal period, It usually lasts 5 days very heavy with clots. This time it lasted three and it was pink and clear and only when I wiped. I took tons of tests and they were all negative. I have been extremely dizzy/tired/naseaus on and off. My breasts also seem swollen but after all the tests I figured I cant be pregnant. Then all of a sudden on Sat August 16th I had a day of VERY VERY small amount of pink and dark brown spotting. It was only there after the first time if I was actually looking for it. I took a test this morning and it was negative. I still feel like I Could be pregnant, any input?