New bleeding after ovulation? Has anyone had this?

My husband and I have been ttc for 8 months. This was the first month we have tried pre seed and I developed a new weird symptom. Two days after ovulation I noticed some pink discharge when I went to the bathroom. We had sex that night and there was more light pink blood.  The next two times we had sex I had light bleeding, but it looks more fresh. Has anyone ever experienced anything like this? I am now 6 dpo