I don't know how to respond, Liz! I'm sorry! spotting for a few days is still ok - I've read some ladies spot for 4 days and it's all implantation. Your temps still look great! I don't think you're due for AF anytime soon, right? and those other symptoms sound excellent, especially the nausea and fatigue! i feel like those will be the give-away signs for me.
keep positive!!!