Sounds, very much to me like you ovulated and spotted and that's the veiny thing you described
Three days and like 2 days ago, he may have pushed deeply, etc.
Are you on birth control? Or did you use a Condom?
I assume your not hense the question.
You know our bodies are all different and this is the hardest section for anyone to truly answer as such.
I think you spotted irrespective, personally.
But if you had "no" protection and you "knew" the ovulation period why tempt fate?
Look forward to you adding for other replies and good to see you come back to the Forum.