Period or possibly pregnant??

So ladies I have a question.....I was suppose to start my period on the 1st of December but when I went to the bathroom I wiped and there was a red/pink discharge after that I was spitting a light brown dicharge...on the 3rd I bled which I thought it was af  but by Friday morning there was nothing there anymore....what could this mean? We have been TTC for 7 months now and still no luck! :( any ideas?