Opinions please.

I had my period December 1st-5th. I've been trying to conceive since around September 16th. For the past two weeks I've been very nauseated, had slight headaches, a stomach ache in the mid area of my stomach, slight heart burn. My period is not due until January 1st, 4 days away. Today I have been spotting blood. Nothing like my period. I will spot a little blood after urinating & sometimes a very little when wiping. But, never enough like a actual period/enough to get of my underwear. Is this a sign my BFP is coming soon or am I getting my hopes up for just signs of a early period about to start?