I think blood tests are rarely wrong maybe you have a hormone imbalance.

I had symptoms sometimes that made me believe I was pregnant, but it turned out to be a false alarm. You know, it's a fact that a lot of pains and symptoms are imagined... So, you could convince yourself that you are pregnant, and that will give off the whole tons of symptoms. But, it is possible to get your period and be pregnant... I did! It didn't last long though, infact, it only lasted a day. I had "one day" monthly periods for three months of my pregnancy! Nothing to worry about, though. It doesn't mean that you are going to have a miscarriage, or that you will have a preterm baby. You should get checked out, though. I am due in just 11 days, and I have a perfectly healthy baby!!!

Well your not the only one who is having that problem....I thought I was pregnant too having all the sytoms of a pregnant women last month and half. But when I took the home pregnancy test it was a negative and I was very sad and upset, because it was false.

You had your period 1 week early, puts you at 3 weeks after your last menstral cycle? Not only will home pregnancy test be wrong, but so will blood test at that stage of the game, it happend to me with my first. I had full periods until I was 4 months pregnant with him. If you still feel symptoms for the next 2 weeks i'd suggest taking a home pregnancy test.