Spotting?

I have been with my partner for 9 years and have been ttc for 1 and 1/2 years. I have PCOS so am very irregular with periods anyway, but am not due on for 10 days. After having sex the day before yesterday I noticed light red blood when wiping after the toilet. There was no blood at all yesterday. We had sex again last night, and noticed light blood again. Every time I go to the toilet today there is blood only after I wipe. I have never experienced anything like this before, has anyone had a similar experience?