I'm 8dpo according to fertility friend and for the last three days I have had a weird feeling in my left pelvic area kind of like someone is holding on to my side. It's not really painful it's more of a pressure type thing. Sometimes I also have a weird crampy feeling on my right and I also had kind of a stabbing feeling on my right side for just a brief moment. Could this be implantation? Feels kind of long to be going on for three days but I can't figure out what else it could be. And no I'm not constipated. I've been super regular with that recently.