spotting one week before AF, took HPT and I believe it's a BFN. Can someone tweak or offer any advice??

wv
Started spotting on 1/27 with light pink and mucous. Thought it was my period starting even though AF isn't due until 1/3.  Second and third day was light with brown, pink discharge. The discharge has only been when I wiped. I haven't even needed a pantyliner. Ovulation was 15-21. I have had no symptoms at all. Took a HPT this morning. I think it's a BFN. I can't see anything. 😔 my husband and I have been trying since last year. This has never happened to me before. Any tweaks or input would be much appreciated 😌🙏🏻