Help!!!! I don't know what to do.

Amanda
Hi everyone, 
My boyfriend and I are TTC. I took pregnancy test is was negative on Christmas Day. I was due for my period on January 1. My period came on January 1 and only lasted for 2-3 days. Usually my period is 5-6 days. I'm not sure if this was period or implantion. First 2 days look like my period. I been feeling really nausea last days. I don't know if it's was my actual period or I'm pregnant or just flu 
Just to mention that I had MC in October