Ovulation

Mary

Hey there, just a quick question 😊 My last AF was Sept 17th -21st. I had sex for the first time since af on Sept 29th and after i went pee and i had light pink spotting. As per the app i started ovulating Sept 30th. I've never bled after sex before. Could it just be the sex itself causing me to bleed? or do you sometimes bleed when your egg drops? I never noticed bleeding when i ovulate. Also im very crampy today.