prego or not??

Kat
So here's my story. The last day I had my period was November 24th and the reason I remember that was because I felt awful and not to mention it was on thanksgiving! Wonderful right! Wrong! Lol anyway I started November 24th and it lasted until the 29th. Now it is January 10th and I still have not started.. I have spotted twice once on December 16th and again on 26th. For the last week I have been having creamy white discharge, it doesn't have a smell or anything and I feel mostly normal. The only thing I've been dealing with lately is heartburn a tad bit of extra tiredness and my nipples are slightly sensitive and again the discharge. Well on the 20th of December I took a test and it came out negative I took another one again on December 27th. Yes I keep track of everything lol but again the test came out negative. What could it be? Could I be pregnant? Can you even spot twice when pregnant? I need advice!