Still wondering if I'm pregnant

I have returned once again because the thought has not left my mind. I'm still wondering if I could be pregnant. As I had said before I had unprotected sex on the 14th of February and was experiencing pregnancy symptoms. Lately some of them have disappeared and I am now experiencing some new ones such as flatulence, an increase in burping, a huge increase in fatigue, and what feels like my chest growing. Also when I push on the area where my uterus would be it feels quite large. I have also recently started bleeding a bit. It's more of a spotting this time around. It has lasted for eight days as of today. I had something similar last month as well, but it was more of a light period. This time it's not enough to need a pad or tampon, but it's there for a second then disappears. I went to the doctor's office on Saturday and got a blood pregnancy test done, but I will not know the results until Wednesday. I've become quite anxious and use to the idea that I could perhaps be a mommy. If so I would be eight weeks as of today. But the main question still is, could I be pregnant?