What Causes White Mucus Extra Discharge On Ovulation Day?

I had a miscarriage about 2 to3 weeks ago. Everything has been going as it should. Today, I have wiped and it would look like little tiny balls of rolled up discharge. Which I haven't had. Then I noticed the extra discharge I thought it was going to be pastey but it stuck to my finger and attached. It's stretchy, white, no smell kind of tissue like (not toilet paper but like what comes during a miscarriage) white in color. Like hard snot that hasn't dried into a booger yet. Never seen it before and can't find anything on the net about it. I had sex 4 days before my ovulation and 3 days before. Today is ovulation day and this strange muscus appears. Also this morning I took a sulfameth/trimethoprim (800/160mg tb) for kidney problems. Awaiting your response thank you.