Never had this before

I’ve read about having ovulation spotting and I’m on cd9 and the past few months I’ve ovulated on cd10. Anyways tonight was the first night I used pre seed and a few hours later went to the restroom and whipped and got blood. I looked it up and it’s possible to have ovulation spotting I’ve never had it before. Was it the pre seed or ovulation? Anyone else get ovulation spotting??