Am I pregnant or nahh???

Ok so I had my period the 10th of December it lasted for 6or 7 days than I had sex Saturday the 20th and he accidentally cummed inside me I started ovulation Monday and it ended like Friday or Saturday and yesterday on the 31st I had spotting very light and it went away and today the 1st of January 2015 I have spotting again but I don't start my next period until January 10th if I have one..?????help anyone my question is is it to early for a pregnancy test??