Question! If I'm just ovulating today and my period is supposed to be due January 4th. Will I have my period on time?

So my last period was the 29th of last month n the last 2 days I'm having bad cramps but no blood or nothing . I get dizzy n light headed . My next period is the 24th idk what's wrong plus I'm nauseous n tired

I gotta question could I be pregnant and have 2 1/2 day period because I think i got pregnant on Nov 26 and had implantation bleeding on Dec 11 because I'm usually on my period for at least 4 days but mostly 5 or 6 which my full period was Nov 11 for 5 days ?? but in dec only 2 1/2 days it's kinda confusing really im excited about my Dr visit feb19 to know for sure :)

Y'all see that right !!! But I'm on my period ???

So I keep feeling these lil sharp pains on my right side. You do get pains like that before you start your period right.? Remember I had that dark brown spotting for a few hours last month on the 22. My period suppose to start today.