TMI is this normal?

Husband and I had sex yesterday at 11 DPO he asked later on in the day if I was supposed to start my period soon I said yes on Wednesday why. He said well when I went down on you it tasted kinda metallic. So I checked my cervix and I had some light pink discharge. I figured great this is my period coming I’m out this month. I put a tampon in and a couple hours later when I switched out the tampon, nothing. Has anyone had this before a BFP? How many days should I wait before I take a pregnancy test? My cervix feel high and soft. And kinda wet. Usually it’s hard, low and with white creamy discharge.