Implantation Bleeding Question

Lizz

Okay, so, I had some SERIOUS implantation bleeding (had to wear pads, thought I was having my period) with my daughter (she's 3.5 now), and I usually have some light spotting at this point in my cycle (I'm 7DPO). Well, my normal spotting is usually pink/red only when I wipe. What I've started yesterday/today is a darker brown color, still only when I wipe. AF is due a week from today. My sense of smell is CRAZY right now (my husband commented on it last night), and I'm very irritable right now. I know it's too early to test, so, I'm not going to, but, ladies, was your implantation bleeding brown? Online when I researched it, it said I'm in the right timeframe for it, and that it can range from pink to brown. Anyone else have implantation bleeding right now?