Can you be pregnant and have a period?

Sarah
Ok ladies, 
I know I keep blowing you guys up with questions, I apologize. I miscarried in April. Since than nothing has been regular. Where before I was ALWAYS regular. Now it is so hard for me to know if I missed a cycle or not. According to my doctor I should have started my cycle October 28th. I received zero signs of pregnancy or period. Than November 2nd I start spotting and I only ever saw blood when I wiped. The very next day I have an actual flow. Typically I bleed VERY heavy, these last few days it has been a different color like almost pinkish and it's not as heavy as my periods usually are. I don't have any of my period symptoms, but I have pregnancy symptoms similar to the one I has before. I tested yesterday November 2nd with blue dye I got a BFN. The day before I tested with pink dye and I got what looks like a positive. I am SO VERY CONFUSED! If any of you ladies can give advice or maybe experience something similar I would love the advice. I am just trying not to have anxiety, but I have never been one for not knowing what's going on with my body. I went to my obgyn today and showed her the photo and all she said with a gasp of air was "let's just play it day by day." Even though I asked her what it looked like to her. So she was no help. :(