So F#^%%^ frustrated!!!!!!

So I’ve been tracking my cycle always and for oct and November I got my monthly period at the ending of the month.

However dec came and went and I didn’t get my monthly period. I took a pregnancy test on the 2nd of Jan and it tested negative. Then on jan. 4 I started spotting so I figured okay my period is going to come soon. Today is jan 7 and I’m still spotting when I wipe there’s either nothing at all or light red or brown blood.

Ugh I need answers can anyone help a lady out?