Blood tinged tissue/lining after sex? Help please! Is this normal?

It’s not spotting and it’s just once when I wiped. It was like “rubbery” blood tissue, not a blood clot. First time having blood after sex. Is this norma!? Also I’m in my fertile week according to the app but been feeling more of pms symptoms (minus breast tenderness). I don’t usually feel anything on my ovulation.