I'm on my 4th day of my period and I had just some red/pink spots those days .I don't know what is wrong with me. I took 3 pregnancy test yesterday and all of them had a faint line , I took another one today with another brand and I don't see anything. Do you think that I can be pregnant?

If you have a faint line, chances are you are preggy. Sine you have three possitive and 1 negative, chances are you are preggy. I would get an appointment with my ob/gyn and get an exam. They can look for more defining signs of pregnancy such as an enlarged uterus and the blueish purple tint to the vagina that accompanies pregnancy. They can tell you one way or a nother. Good luck.