Implantation cramping

Is 5 dpo too early for implantation cramps? I've been having an achey/ straining feeling from my left side (same side I O'd from Friday night/Saturday morning) and sometimes it feels more in the middle very low In my pelvic area. My mom surprised me with a visit so I'm mopping and trying to get the house ready and the cramping seems to exhausted me a little. My cervix is low, hard and a white/ water discharge but a very scant amount. Which leads me to believe I'm not actually pregnant this cycle. I'm always regular so I know it's not AF. Thanks ladies! And I hope you all get those glorious BFPs