Bleeding, but feel pregnant?

Ok ladies, I am a mom of 3 and have been pregnant 4 times (with one blighted ovum) This month my period was about 12 days late, and I thought for sure I was pregnant. I have had all the same symptoms that I've had with all 4 pregnancies. On Mon, I started to have dark brown spotting, followed the mext day by what seemed like my normal period. Then yesterday, (Wed) I bled during the day, also like a normal period, until the evening, it turned back into very light bleeding/spotting. Today is just spotting again. I have had no cramping like I normally would with my cycle, and it usually lasts 4-5 days and heavy-ish. Now, here is my concern...I still feel pregnant. I'm very nauseous, sore breasts, etc. So my question is, could I still possibly be pregnant? Something in my gut keeps telling me that I am. So, what are your thoughts? Have any of you ladies experienced this? What was the end result? I'm driving myself mad! Lol