Flu symptoms, yellow cm and weird cramps?

I'm currently 6dpo, Ever since ovulation I have had white thick cm but on one occasion it was yellow. It's now turned to milky, lotion type cm. Also since 4 dpo I've had flu symptoms. No runny nose, no headaches or sore throat just the fatigue and nausea. The feeling like you need to be sick but you don't? Twice I've woke up and had to run to the bathroom thinking I was going to be sick. I've had mild af like cramps since ovulation Aswell along with some twinges, pinching pains and just now tiny stabbing pains just below my belly button. I know it's early but could this be symptoms? I've heard implantation happens 6-12 days after ovulation and I've never had any of this before. Trying not to get my hopes up :(