Am I pregnant? Or am I starting my period early?..

So guys...I really need some advice with this one:..

So I think I have been spotting today and I have really bad belly cramps..

I am not due on my period till 3rd of April..

I had unprotected sex due to me and my partner TTC about 1 weeks ago and we have done it everyday since..

But today this is the first time I have had really bad cramps..they aren't like period cramps but they really hurt

My breasts are really sensitive and tender and I have been feeling really nauseous..

Please help put my mind at ease and telle what you think and what i should do!!?

Love ya guys! ❤