So I'm 13 dpo today and went to the bathroom and noticed extremely light light brown discharge on my panties, small amount and thick. I've been having some minor cramps but nothing like my AF cramps (first time my cramps have ever felt different) and my cramps are low, right above my pubic bone almost. Normally my AF cramps are a little higher up. Implantation or AF? Tested this morning and BFN. Normally my AF symptoms are the same every month and this is my first month TTC. Any thoughts or opinions are appreciated!