Whats going on

My af was supposed to arrive nov 9th. On the 11th i had the lightest spotting then it stopped the same day. Totally fine the 12th... then on the 13th very light spotting and it went away again. I havent had any spotting nor have i gotten af yet. Ive tested several times and got a bfn. My husband and i have been ttc for 1 year now and this is all soo random. I took a break the month of oct and nov from charting etc... im soo confused. Blahhh