Can anyone help? Maybe TMI for some?

I'm 6dpo, had unprotected sex during ovulation, he came inside me, and I'm currently feeling very sick, had some diarrhoea and also feeling fatigued. Had some creamy discharge which was light pink in colour (not sure what this means, I've never had it before) I also heard somewhere that diarrhoea can be an early sign of pregnancy? Is it too early to be having symptoms? My period is due in 6 days, should I just wait and see if it arrives?